Boston signed up for a setback as infielder Marcelo Mayer landed on the 10‑day injured list after doctors diagnosed a bone stress reaction in his left ulna. The move came Friday before the Red Sox hosted the Yankees, forcing the club to shuffle its infield roster as veteran shortstop Trevor Story also sat on the bench.

Mayer, the fourth overall pick in 2021, has struggled to find form this season, batting .220 with three homers and 22 RBI. His absence leaves the Red Sox scrambling for coverage at shortstop, a position already thin after Story’s sports hernia surgery and Isiah Kiner‑Falefa’s forearm injury last week while the team hopes to keep the lineup balanced.

In response, Boston recalled infielder Tsung‑Che Cheng from Triple‑A Worcester. The 23‑year‑old will start at shortstop and bat ninth in the lineup, marking his first appearance for the club. Cheng was claimed off waivers from Washington in February after a season with Pittsburgh. The move gives the coaching staff a chance to evaluate a young arm in a high‑pressure environment.

With Mayer sidelined, the Sox face a tough stretch against the Yankees as their infield depth erodes. The injury list shuffle underscores the team's ongoing battle to stay competitive in the tight AL East race. Fans will watch to see if the new shortstop can steady the ship for the remainder of the season today.