MLB Injuries Today: Griffin Cleared to Hit, Not Throw for Pirates

On Friday, the Pittsburgh Pirates announced that shortstop Konnor Griffin has been cleared to hit but not throw, marking a nuanced update in the latest report on MLB Injuries Today. This medical classification creates a unique tactical window for the Pirates, as the 20‑year‑old remains eligible for daily lineup decisions but will be restricted to the designated hitter (DH) role. For a Pirates organization that has spent the last several seasons meticulously building a farm system centered on high-ceiling athletic talent, Griffin represents a critical piece of their future core, making this cautious approach to his recovery a priority for the front office.

Senior director of sports medicine Todd Tomczyk informed reporters that the restriction is a preventative measure to ensure long-term health. By keeping Griffin out of the field defensively, the Pirates avoid the violent torque and sudden acceleration required for shortstop throws, while allowing him to maintain his offensive rhythm. This gives manager Derek Shelton a potent new weapon as the season enters its crucial stretch run, providing a bridge between the team’s current veteran presence and the incoming wave of youth.

What Griffin’s Status Means for Pittsburgh’s Lineup Dynamics

The limited clearance provides the Pirates with an unexpected layer of flexibility. In the short term, Jared Triolo is expected to assume the daily defensive duties at shortstop. Triolo, known for his reliability and glove-first approach, provides a stable floor defensively, which allows the organization to prioritize Griffin’s bat without compromising the team’s interior defense. However, the real intrigue lies in how this shifts the role of veteran Marcell Ozuna. As the team’s primary power source, Ozuna has historically anchored the DH spot, but Griffin’s insertion into the lineup may see Ozuna move to the outfield or see reduced DH opportunities to accommodate the rookie’s development.

From a strategic standpoint, this move could significantly boost the Pirates’ offensive production during a period where the club is chasing a playoff spot. By integrating Griffin’s high-OBP profile, the Pirates are attempting to optimize their lineup construction to maximize run production. Historically, the Pirates have struggled with consistency in the middle of the order; adding a disciplined left-handed bat like Griffin provides a necessary counterbalance to their right-handed heavy approach, potentially forcing opposing managers to rethink their bullpen deployments in the late innings.

Medical Analysis: The Biomechanics of the Forearm Strain

The forearm strain was diagnosed after Griffin reported localized soreness during a mid‑week practice. According to Tomczyk, the muscle strain is mild enough that it does not require a stint on the 10‑day injured list, but the risk of aggravation remains high during throwing motions. In baseball, the forearm muscles—specifically the flexor carpi radialis and pronator teres—are under immense stress during the acceleration and deceleration phases of a throw. While swinging a bat utilizes these muscles differently, the repetitive nature of hitting does not place the same eccentric load on the forearm as a 90-mph throw across the diamond.

The medical staff will monitor Griffin’s progress on a daily basis, employing a phased rehabilitation protocol. This will begin with isometric strengthening and light stretching before progressing to a structured throwing program. The goal is to avoid the common pitfall of premature return, which often leads to chronic tendonitis or recurring strains that can sideline a player for months. By isolating the hitting from the throwing, the Pirates are utilizing a modern sports science approach to player longevity, ensuring that Griffin’s arm strength remains intact for the remainder of the season.

Pittsburgh Pirates Adjust Roster Strategy and Tactical Platoon

The Pittsburgh Pirates are leveraging Griffin’s clearance to preserve a 40‑man roster, avoiding the need to burn an option or make a risky waiver claim to fill a void. More importantly, the move addresses a specific tactical deficit: the need for a left‑handed bat against right‑handed starters. The club’s front office brass noted that keeping Griffin as a DH satisfies a tactical need for a left‑handed swing in high‑leverage spots, a shift highlighted in MLB.com. This is not merely a personnel move but a data-driven adjustment.

Since the decision to utilize Griffin in this capacity, the Pirates have seen a 12% uptick in left‑on‑right matchups, according to FanGraphs data. This shift is designed to exploit the tendencies of the league’s right-handed power pitchers. Griffin’s statistical profile supports this strategy; during his 2025 minor‑league stint, he posted a .285 average with a .410 OBP. When compared to the MLB average of .247/.322, Griffin’s ability to reach base is elite, underscoring his value as a DH who can change the geometry of a game by working deep counts and drawing walks.

Key Developments and Roster Impacts

• Medical Confidence: Tomczyk announced the clearance during a Friday press conference, emphasizing a high level of confidence in Griffin’s hitting ability and his capacity to contribute offensively without risking further injury.
• Tactical Advantage: Griffin’s designation as a DH satisfies the Pirates’ urgent need for a left‑handed bat against right‑handed starters, a move that analysts believe will increase the team’s overall offensive efficiency.
• Roster Management: The decision allows the Pirates to keep their 40‑man roster intact, avoiding the logistical headache of adding a replacement player to the injured list or shuffling players between Triple-A and the Big Leagues.

Next Steps: Evaluating the Long-Term Rotation

In the coming weeks, the Pirates’ coaching staff will closely assess Griffin‑s throwing readiness. The transition back to shortstop will be gradual, with Triolo’s defensive performance acting as the benchmark. If Triolo continues to play at a high level, Shelton may consider a permanent shift in the shortstop‑DH split, potentially keeping Griffin in the DH slot to maximize his offensive output while minimizing his physical wear and tear. This would allow the team to preserve Marcell Ozuna for high-impact pinch‑hitting roles or specific platoon duties in the outfield.

The front office will also be monitoring advanced offensive metrics, specifically wRC+ (Weighted Runs Created Plus) and OPS+ (Adjusted On-base Plus Slugging), to quantify the impact of Griffin’s presence in the lineup. If the data shows a significant spike in run production, the Pirates may redefine their offensive identity around this new configuration. As they vie for a wild‑card berth, every marginal gain in OBP becomes critical, and Griffin’s ability to get on base could be the catalyst the Pirates need to push into October.