Acce Jairo Iriarte Jersey s the Yankees beat like never before Join Post Sports+ for exciting subscriber-only features, including real-time texting with Greg Joyce about the inside buzz on the Yankees. The already depleted Yankees bullpen is taking another hit. Reliever Mark Leiter Jr. was placed on the 15-day injured list Tuesday with a stre s fracture in his left leg, and manager Aaron Boone said there is no timetable for the right-handers return. Leiter said he felt a little pop covering first base in the 5-4 extra-inning lo s to the Reds on June 24 in Cincinnati, and that the injury developed from there. He and the Yankees training staff initially thought it was a calf injury, so he got a couple of days off and said he felt like it was trending in a positive way. Then, the pain flared up during the Subway Series over the weekend. Explore More I was able to compete, I was able to feel like I had my legs under me, and it was getting better each day, Leiter said before Tuesdays game against the Mariners at Yankee Stadium. And then on Saturday, warming up, felt it again a little more, and Sunday I felt compromised for the first time since it really happened. Mark Leiter Jr. #56 of the New York Yankees reacts after getting Juan Soto #22 of the New York Mets to hit into a double play in the seventh inning at Citi Field, Sunday, July 6, 2025. Corey Sipkin for the NY POST The Yankees recalled right-hander Clayton Beeter from Triple-A Scranton/Wilkes-Barre to fill Leiters spot. Leiter said the play in Cincinnati that caused the injury was an infield hit by Elly De La Cruz in the bottom of the 11th inning, when Leiter awkwardly stepped on the bag in an effort to beat out the ultra-quick De La Cruz. The 34-year-old said he struggled to run and turn left in the days after the play, but that his ability to throw wasnt inhibited until more recently. Obviously, not great, Boone said before Tuesdays game. I know hes not going to throw for a couple days, but hopefully after that can get up and throwing and start getting back. Boone added that Leiter will get an MRI exam and CT scan Tuesday night and the team will then get a feel for his timetable. In 34 / innings this season, all in relief, Leiter has posted a 4.46 ERA with 46 strikeouts. Yankees pitcher Mark Leiter Jr. throws a pitch in the 6th inning at Yankee Stadium. JASON SZENES/NY POST The Yankees bullpen has been in flux all season, with relievers such as Yerry De los Santos and Fernando Cruz currently on the IL, and others having spent time sidelined with injuries. Its been a rough stretch, Boone said of his bullpen. Especially with the amount of games, pitching guys, weve been in a lot of close games. Marks a guy that weve leaned on a lot in the first half, so thats probably caught up to us a little bit. Earl Averill Jersey