The Boston Red Sox are preparing to shift Marcelo Mayer from second base to shortstop as Trevor Story undergoes sports hernia surgery, with Mayer expected to make his first MLB start at the position as soon as Sunday. The move marks a return to Mayer’s natural position after years of playing elsewhere due to Story’s presence on the roster, and it could reshape the team’s infield for at least two months.
Why Mayer’s Move to Shortstop Matters
Mayer’s transition back to shortstop isn’t just a tactical adjustment—it’s a high-stakes test for both the Red Sox and the 23-year-old infielder. Drafted fourth overall by Boston in 2021, Mayer was always considered a shortstop prospect, but his development has been derailed by injuries and positional shuffling. With Story sidelined for an estimated 6–10 weeks, the Sox are betting that Mayer’s defensive instincts and familiarity with the position will translate to major-league success. For Mayer, this is a chance to prove he belongs in the lineup as more than a defensive utility player.
“That’s home to me. That’s where I’ve played my whole life,” Mayer said of shortstop, emphasizing his comfort with the role. But the real question is whether the move will unlock his offensive potential. Mayer has struggled at the plate this season, posting a .221/.290/.313 line in 146 plate appearances, and his lack of power has been a persistent concern. If shortstop reignites his confidence—or at least stabilizes his approach—it could be a turning point for his career.
Interim manager Chad Tracy, who managed Mayer in Triple-A Worcester, has been vocal about the team’s confidence in the shift. “We started proactively getting Marcelo some work there this past week in Kansas City,” Tracy said, adding that while Mayer won’t necessarily play every day at shortstop, the Sox are committed to exploring the possibility. “Does that mean he’ll play there every single day? Maybe not, but we’re definitely going to explore that.”
The Story Injury: A Timeline and What It Means for Boston
Story’s sports hernia surgery, performed on Friday, is the latest in a string of injuries that have plagued him since joining the Red Sox in 2022. The six-year, $140 million contract he signed in 2022 has been marred by missed time, and this season was no exception—he entered the injury with a .206/.244/.303 line in 41 games. His absence leaves a void at shortstop, but it also creates an opportunity for Mayer to step into a role he’s played since he was a kid.
Tracy has been cautious about setting a timeline for Story’s return, calling his recovery process “a little bit more work” before Mayer takes over full-time. “I won’t put a timeline on him, but he’s going to be down for a while,” Tracy said. For now, the focus is on Mayer’s adjustment, with Tracy emphasizing the need for reps to reacclimate to the angles and pace of shortstop. “Really, initially, it’s just the angles are different,” Tracy explained. “You have more time at second because the throw is shorter. At short, you have to cut angles differently.”
The Sox have already begun rotating utility infielders Nick Sogard, Andruw Monasterio, and Isiah Kiner-Falefa at second base, but Mayer’s move to shortstop could force a deeper shuffle. Sogard, who started at shortstop in Friday’s game, has also taken third-base reps, hinting at further positional flexibility. Meanwhile, the team’s top shortstop prospect, Franklin Arias, remains in Double-A, leaving Mayer as the only viable option for the foreseeable future.
Defensive Strengths and Offensive Questions
Mayer’s defensive reputation is one of his strongest assets. Prospect evaluators have long praised his fluidity, instincts, and arm strength, even if his speed isn’t elite. At second base this season, he’s posted two outs above average, while his brief stints at third base last year were solid. But shortstop is a different beast, and Mayer’s limited major-league experience there—just three innings in two late-game appearances—raises questions about his readiness.
Tracy and bench coach José David Flores have been working with Mayer on fungo drills to sharpen his reactions to different batted-ball types. “We did a lot of fungo work with me hitting fungos and just seeing him react to those angles,” Tracy said. “When you have a longer throw, it plays a little differently.” Mayer’s confidence in his defensive abilities is clear: “I feel like I feel comfortable anywhere defensively,” he said. “But as far as fielding ground balls and throwing it to first base, I feel pretty confident in my ability to do so wherever.”
The bigger question is whether that confidence will translate to offensive consistency. Mayer’s struggles at the plate—particularly his lack of power—have been a red flag. His .638 OPS this season is well below expectations for a first-round pick, and his two home runs in 282 plate appearances suggest he’s yet to find a repeatable swing. Moving to shortstop could free up second base for a more productive hitter, but if Mayer doesn’t improve at the plate, the Red Sox may find themselves in a deeper hole than they anticipated.
What’s Next: The Red Sox’s Infielder Shuffle and Beyond
For the next six to ten weeks, the Red Sox’s infield will look drastically different. Mayer’s transition to shortstop will likely be gradual, with Tracy and Flores monitoring his progress closely. If he succeeds, it could open the door for more playing time—and potentially a permanent shift back to his natural position. But if he struggles, the Sox may need to reconsider their approach, possibly reverting to a utility-heavy infield.
Story’s return timeline remains uncertain, but his absence has already forced the Sox to make tough decisions. With Mayer’s move to shortstop, the team is betting on his defensive prowess and positional familiarity. But the real test will be whether that confidence extends to his bat. If Mayer can’t produce offensively, the Red Sox may find themselves in a worse position than before—with a shortstop who can’t hit and an infield that lacks depth.
The stakes are high, but the opportunity is clear: Mayer’s move to shortstop isn’t just about filling a hole—it’s about redefining his role on the team. For the Red Sox, it’s a gamble worth taking. For Mayer, it’s a chance to prove he’s more than just a defensive specialist. The next few weeks will tell us whether the bet pays off.
“I feel like I feel comfortable anywhere defensively. But as far as fielding ground balls and throwing it to first base, I feel pretty confident in my ability to do so wherever.”
MLB.com reported that Mayer’s move to shortstop is part of a broader infield shuffle, with utility players stepping in at second base. Meanwhile, The New York Times highlighted the risks of Mayer’s transition, noting that his offensive struggles could become more pronounced if he struggles to adjust to the position’s demands. The Boston Globe framed the move as a test for Mayer’s career, suggesting that his performance at shortstop could determine his long-term role on the team.
