​PHOENIX — Arizona Diamondbacks fans did not need a formal injury update to realize something was going on with Geraldo Perdomo. A brief glimpse of the shortstop’s wrapped hand during a TikTok livestream was enough to create immediate concern across the fan base, especially with Arizona preparing to resume play after the 2026 MLB All-Star break.
The speculation surrounding Perdomo’s hand injury was addressed when Diamondbacks manager Torey Lovullo confirmed that the infielder received a cortisone injection during the All-Star break. While any hand issue for a starting shortstop is notable, Lovullo offered the most important update: the Diamondbacks expect Perdomo to remain in the lineup when the season continues.
That news should come as a relief for Arizona. Perdomo has become one of the most important players on the Diamondbacks roster, not only because of what he provides offensively, but because of the stability he brings defensively at a premium position. Shortstop is one of the most demanding spots on the field, and Perdomo’s presence helps anchor the entire infield.
Lovullo also joked that Perdomo had broken “The Archie Bradley Rule,” a lighthearted reference to players posting certain things on social media that can unintentionally spark questions or concern. In this case, one quick appearance of a wrapped hand was all it took for Diamondbacks fans to start wondering whether their starting shortstop was dealing with something serious.
For now, the answer appears to be encouraging. Perdomo received treatment, but the expectation is that he will continue playing. That distinction matters. A cortisone injection can sound alarming, particularly when it involves a hitter’s hand, but the Diamondbacks do not appear to be treating the situation as one that will force Perdomo out of action.
Still, the concern is understandable. Hand injuries can affect nearly every part of a baseball player’s game. For a hitter, grip strength, bat control, timing and power can all be impacted. For a shortstop, the hand is just as important defensively. Perdomo needs to make quick transfers, accurate throws, difficult tags and instinctive plays in the middle of the diamond. Even a minor limitation can become significant over a long stretch of games.
That is why Perdomo’s injury status is so important for the Diamondbacks. Arizona relies heavily on its core infielders, including Perdomo and Ketel Marte, to set the tone on both sides of the ball. When those players are healthy and productive, the Diamondbacks are a much more complete team. Perdomo’s value does not always show up completely in a box score, but it is obvious over the course of a game.
Elite shortstops affect almost every inning. They direct traffic in the infield, help position teammates, turn double plays, cut off throws, control the pace of defensive situations and provide leadership through consistency. Perdomo has grown into that kind of player for Arizona. Losing him, or even having him limited, would create a real challenge for a team trying to stay competitive after the All-Star break.
The timing also makes the situation more noticeable. At this point in the season, even small injuries feel magnified. The margin for error gets smaller as teams begin separating themselves in the playoff race. Every at-bat carries more weight. Every defensive inning matters. Every player dealing with discomfort becomes part of a larger conversation about depth, durability and postseason chances.
For the Diamondbacks, the best-case scenario is simple: Perdomo continues to play without visible limitation, and the cortisone injection becomes a minor note rather than a major storyline. If he remains productive and steady at shortstop, the discussion will quickly shift away from his hand and back toward Arizona’s push in the second half of the season.
That would be the ideal outcome for both Perdomo and the Diamondbacks. His importance to the team is not defined by one injury update, but by the reliability he has shown over time. Dependable players help determine how far a team can go, especially during the grind of a long MLB season.
Arizona does not need Perdomo to be the loudest name in the lineup every night. The Diamondbacks need him to be available, steady and effective. If he can continue to provide that after the All-Star break, then the concern sparked by a wrapped hand on social media will likely fade quickly.
The bigger question for Arizona is whether the Diamondbacks can stay hot after the 2026 MLB All-Star break. Keeping Geraldo Perdomo healthy and in the lineup will be a major part of that answer. For now, the latest update suggests the Diamondbacks avoided the worst-case scenario, and their starting shortstop is expected to keep playing as Arizona looks to build momentum in the second half.