InjuryMLBJun 22, 2026, 6:54 PM· 6 min read· #14 of 14 in sports

MLB Injury Updates: Teoscar Hernandez and Ryan Mountcastle Accelerate Rehabs Ahead of July Push

The Los Angeles Dodgers and Baltimore Orioles are receiving major midsummer boosts as key contributors Teoscar Hernandez and Ryan Mountcastle near their returns from the injured list.

By Factlen Editorial Team

Medical & Training Staffs 30%Front Office Executives 30%Fantasy Baseball Managers 20%Field Managers 20%
Medical & Training Staffs
Prioritize phased recovery protocols and biomechanical testing to ensure players return without risk of re-aggravation.
Front Office Executives
View successful midsummer injury returns as internal trade acquisitions that bolster the roster without costing prospect capital.
Fantasy Baseball Managers
Closely monitor rehab assignments and minor-league tune-ups to optimize their active rosters and capitalize on returning production.
Field Managers
Balance the immediate need for major-league production with the long-term health of the athlete during the grueling summer months.

What's not represented

  • · Minor League Opponents
  • · Team Physical Therapists

Why this matters

For championship contenders, getting impact players back from injury in midsummer is functionally equivalent to a major trade deadline acquisition. These successful rehabilitations preserve prospect capital while injecting fresh talent into the lineup for the stretch run.

Key points

  • Dodgers outfielder Teoscar Hernandez has been cleared to begin a minor-league rehab assignment following a Grade 1 hamstring strain.
  • Hernandez is targeting a return to the Los Angeles active roster for their series against Oakland on June 29.
  • Orioles first baseman Ryan Mountcastle has resumed running activities and is aiming for an early July return from a fractured foot.
  • Baltimore pitcher Chris Bassitt is progressing toward a bullpen session after experiencing lower back discomfort, with no structural damage reported.
Grade 1
Hernandez hamstring strain severity
June 29
Hernandez targeted activation date
April 11
Date of Mountcastle's foot fracture
.325
Hernandez batting average in May

The grueling 162-game Major League Baseball season inevitably tests the depth and resilience of every championship contender, but late June is bringing a wave of positive reinforcement for two of the sport's premier rosters. The Los Angeles Dodgers and Baltimore Orioles are both tracking the imminent returns of key offensive and pitching contributors, providing a vital midsummer boost just as the divisional pennant races begin to crystallize. Rather than scouring the trade market for stopgap solutions, these front offices are watching their own impact players cross the final hurdles of their rehabilitation protocols.

In Los Angeles, the medical focus is squarely on veteran outfielder Teoscar Hernandez, who is rapidly progressing from a Grade 1 left hamstring strain. Hernandez originally sustained the injury on May 27, pulling up lame while running out a grounder against the Colorado Rockies. After a cautious three-week recovery period designed to prevent any soft-tissue setbacks, the Dodgers' medical staff has officially cleared the slugger to begin a minor-league rehab assignment. This methodical approach ensures that the muscle fibers have fully healed before being subjected to the explosive demands of major-league game action.[3]

Dodgers manager Dave Roberts outlined the specific roadmap for his outfielder's return, confirming that Hernandez will report to Triple-A Oklahoma City this week. He is slated to play in four to five games against the Reno Aces starting on Tuesday, allowing him to regain his timing at the plate and test the hamstring under live game conditions. If he clears those hurdles without lingering tightness, Hernandez is perfectly on track to be activated for the Dodgers' upcoming series against the Oakland Athletics beginning on June 29. The minor-league stint serves as the final, crucial exam in his recovery curriculum.

Projected activation dates for key players currently recovering on the injured list.
Projected activation dates for key players currently recovering on the injured list.

The accelerated timeline represents a best-case scenario for a player dealing with a hamstring issue, which are notoriously prone to re-aggravation if rushed. Hernandez had been a vital offensive engine for Los Angeles prior to the injury, catching fire in May with a .325 batting average and seven extra-base hits before hitting the injured list. His impending return will inject much-needed right-handed power back into the middle of the Dodgers' order, helping to balance a lineup that has had to shuffle its outfield alignment and rely heavily on its depth in his absence.

While Hernandez prepares to take the field in Oklahoma City, the Dodgers are exercising a slightly more conservative approach with catcher Will Smith. Sidelined with neck inflammation in early June, Smith is not expected to return to the active roster until July. However, the imminent arrival of Hernandez provides the Los Angeles offense with enough firepower to allow Smith the necessary time to fully resolve his neck stiffness without the pressure of a rushed return. Managing these overlapping timelines is a delicate balancing act for the coaching staff as they navigate the dog days of summer.[3]

While Hernandez prepares to take the field in Oklahoma City, the Dodgers are exercising a slightly more conservative approach with catcher Will Smith.

Across the country, the Baltimore Orioles are receiving similarly encouraging news regarding first baseman Ryan Mountcastle. The power-hitting infielder has been sidelined since April 11 after suffering a fractured left foot, an injury that forced him onto the 60-day injured list and temporarily disrupted Baltimore's infield depth. After weeks of immobility, specialized footwear, and careful monitoring by the medical team, Mountcastle has officially resumed running activities—a critical and highly anticipated milestone in his recovery protocol that signals the bone has achieved structural stability and can handle dynamic loads.[1]

Resuming dynamic running activities is a critical milestone for players recovering from lower-body injuries.
Resuming dynamic running activities is a critical milestone for players recovering from lower-body injuries.

The Orioles' medical staff and front office are currently targeting a late June or early July return for the 29-year-old. Mountcastle's successful progression from a walking boot back to dynamic, weight-bearing exercises suggests that the fracture has healed cleanly and completely. Over the next several days, he will continue to ramp up his baseball-specific activities, transitioning from straight-line running to lateral agility drills and extensive batting practice. Once his conditioning reaches an optimal level, he will embark on his own minor-league rehab stint to recalibrate his swing against live pitching.

Baltimore is also closely tracking the recovery of veteran right-handed pitcher Chris Bassitt, who landed on the 15-day injured list on June 8 with lower back discomfort. Back injuries can be highly unpredictable for starting pitchers, often lingering and disrupting throwing mechanics, but recent updates indicate that Bassitt is already working his way back toward the mound. He is scheduled to throw a high-intensity bullpen session shortly, which will serve as a primary litmus test for his rotational mobility, core stability, and overall arm strength.[1]

Assuming Bassitt's back responds well to the bullpen session without any residual stiffness or pain, the next steps will involve throwing live batting practice to hitters. This will be followed by a brief minor-league tune-up designed to build his pitch count back to a traditional starter's workload. The confirmed lack of structural damage to his spine or surrounding musculature provides a massive sigh of relief for an Orioles pitching staff that has leaned heavily on its organizational depth to navigate the grueling first half of the regular season.

Bullpen sessions serve as the primary litmus test for pitchers returning from back and shoulder ailments.
Bullpen sessions serve as the primary litmus test for pitchers returning from back and shoulder ailments.

The influx of returning talent for both the Dodgers and Orioles highlights the critical role of modern sports medicine, biomechanical tracking, and strategic load management in today's game. By utilizing advanced imaging and strictly adhering to phased recovery protocols, teams are increasingly able to bring players back from significant injuries with a dramatically lower risk of secondary aggravation. For contenders locked in tight divisional battles, getting All-Star caliber players back on the field in July is functionally identical to executing a blockbuster trade deadline acquisition—without having to surrender any valuable prospect capital.[2][3]

As the calendar turns toward the All-Star break, these successful rehabilitations offer a blueprint for surviving the grueling summer months of the baseball season. With Teoscar Hernandez preparing to step into the batter's box in Oklahoma City and Ryan Mountcastle rounding the bases at the Orioles' training complex, the reinforcements are officially on the horizon. For fans in Los Angeles and Baltimore, the sight of their stars returning to the diamond provides a powerful surge of optimism and momentum for the crucial second half of the 2026 campaign.

How we got here

  1. April 11, 2026

    Orioles first baseman Ryan Mountcastle suffers a fractured left foot, landing him on the 60-day injured list.

  2. May 27, 2026

    Dodgers outfielder Teoscar Hernandez sustains a Grade 1 left hamstring strain while running out a ground ball.

  3. June 8, 2026

    Orioles pitcher Chris Bassitt is placed on the 15-day injured list with lower back discomfort.

  4. June 23, 2026

    Hernandez is scheduled to begin a minor-league rehab assignment with Triple-A Oklahoma City.

  5. June 29, 2026

    The targeted activation date for Hernandez to rejoin the Dodgers' major-league lineup.

Viewpoints in depth

Medical & Training Staffs

Prioritize phased recovery protocols and biomechanical testing to ensure players return without risk of re-aggravation.

For modern athletic trainers and physical therapists, a successful return from a soft-tissue injury like a hamstring strain or a bone fracture requires strict adherence to phased recovery protocols. Rather than relying purely on a player's self-reported pain levels, medical staffs now utilize biomechanical tracking and force-plate testing to ensure that an athlete is generating symmetrical power before they are cleared for live game action. In the case of Teoscar Hernandez, the Dodgers' cautious three-week timeline for a Grade 1 strain reflects a broader industry trend of prioritizing complete healing to avoid the cascading mechanics that often lead to secondary injuries.

Front Office Executives

View successful midsummer injury returns as internal trade acquisitions that bolster the roster without costing prospect capital.

General managers and front office personnel view the late-June return of impact players through the lens of roster construction and asset management. As the July trade deadline approaches, the asking price for power-hitting outfielders or reliable starting pitching reaches its peak. By successfully rehabilitating stars like Ryan Mountcastle and Chris Bassitt, organizations can effectively add All-Star caliber production to their stretch-run rosters without having to surrender top-tier prospects in the trade market. These internal reinforcements provide a massive strategic advantage in tight divisional races.

Fantasy Baseball Managers

Closely monitor rehab assignments and minor-league tune-ups to optimize their active rosters and capitalize on returning production.

In the highly competitive ecosystem of fantasy sports, the waiver wire and injured list are critical battlegrounds. Fantasy managers track minor-league rehab assignments with intense scrutiny, looking for the exact moment a player like Mountcastle begins running drills or Bassitt schedules a bullpen session. Stashing these recovering stars on injured reserve slots and activating them precisely as they return to major-league form can dramatically alter the balance of power in fantasy leagues, making detailed medical updates a highly valued commodity.

What we don't know

  • Whether Teoscar Hernandez will experience any residual tightness in his hamstring during his Triple-A games.
  • The exact date Ryan Mountcastle will be cleared to begin his own minor-league rehab assignment.

Key terms

Grade 1 strain
A mild muscle strain involving the stretching or microscopic tearing of muscle fibers, typically requiring a few weeks of recovery.
Rehab assignment
A period where a major-league player participates in minor-league games to test their recovery and regain timing before returning to the active roster.
Bullpen session
A practice session where a pitcher throws off a mound to a catcher, used to build arm strength and test mechanics during the injury recovery process.
60-day injured list
A roster designation for players with significant injuries, removing them from the team's 40-man roster for a minimum of 60 days to free up space for healthy replacements.

Frequently asked

When is Teoscar Hernandez expected to return to the Dodgers?

Hernandez is scheduled to begin a minor-league rehab assignment on June 23 and could be activated for the Dodgers' series against the Athletics beginning June 29.

What injury has kept Ryan Mountcastle sidelined?

Mountcastle suffered a fractured left foot on April 11, but he has recently resumed running activities and is targeting a late June or early July return.

Is Chris Bassitt dealing with a structural back injury?

No, Bassitt was placed on the 15-day injured list with lower back discomfort, but reports indicate there is no structural damage, and he is already preparing for a bullpen session.

How long do hamstring strains typically take to heal?

A Grade 1 hamstring strain, like the one suffered by Hernandez, typically requires three to four weeks of recovery and minor-league rehab to ensure the muscle is fully healed.

Sources

Source coverage

3 outlets

4 viewpoints surfaced

Medical & Training Staffs 30%Front Office Executives 30%Fantasy Baseball Managers 20%Field Managers 20%
  1. [1]CoversMedical & Training Staffs

    MLB Injured List and Injury Updates

    Read on Covers
  2. [2]FanGraphsMedical & Training Staffs

    2026 MLB Injury Report & Roster Resource

    Read on FanGraphs
  3. [3]MLB.comField Managers

    Dodgers injuries: Hernandez to Triple-A, Smith out until July

    Read on MLB.com
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