Worst MLB performances of 2025: A year-end recap of the season’s biggest disappointments, injuries, and more

The highs from the 2025 MLB season were unforgettable, but it sure showed how quickly expectations can go to hell. Some clubs began the year with expectations of contending based on big names and big spending. They instead turned into cautionary tales, derailed by injuries, steep personal declines, and long stretches of non-competitive baseball.The most unimpressive stuff of the season wasn't exclusive to rebuilding clubs, either: from ex-MVPs grappling with inconsistency to rotations buckling under the strain of injuries. The same went for several franchises with significantly deep pockets, who watched as hope morphed into helplessness as the calendar neared the year's end, turning front offices to uncomfortable decisions.One of the biggest storylines no one wanted was more struggles for Mike Trout. Trout again spent significant time on the shelf due to injury that season as well, and his annual output fell well short of his career norm in both games played and overall production. The Los Angeles Angels, his entire team, built upon the back of his greatness, never truly came back from the absence of his presence, and landed pathetically close to the American League cellar.Giancarlo Stanton had one of the worst seasons of his career in New York. Reduced range of motion and a decrease in bat speed caused an immediate fall-off in slugging percentage and an accompanying ballooning of strikeouts. With Stanton providing little, it became impossible for the Yankees to maintain offensive consistency despite a roster built to play in October.The pitching disappointments were just as obvious. Sandy Alcantara was a Cy Young as recently as a year ago, but never found his rhythm again after leaving the IL. His high ERA and fewer innings put tremendous pressure on Miami's bullpen and crushed the team's hopes of staying within striking distance.Some teams went fully structurally broken. The other team, the New York Mets, had one of the highest payrolls in baseball, but once again collapsed in a season filled with awful pitching depth and no offense. As the calendar turned to August, midseason losing streaks had wiped away any postseason aspirations.The Padres again failed to translate talent into triumph in San Diego. Defensive lapses, bullpen instability, and injuries to key starters contributed to a sub -.500 performance that was greatly below projections. The Chicago White Sox's giving up on 2025 might have been the bleakest showing of the year. With injuries, a bad run differential, lack of any real offense, they were mostly stuck at or near the bottom of the standings all season until speculation about the long-term directions of their organization began.Also Read: “He is a machine”: MLB insider breaks down why signing Bo Bichette is best move for Toronto Blue Jays