New York Yankees pitcher Marcus Stroman had a setback as he tries to return from a left knee injury that has sidelined him for the last month.

Aaron Boone told reporters on Sunday that Stroman still felt discomfort in his left knee during a simulated game this week. The rule of thumb for pitchers is that for however long they are down with an injury, it takes them just as long to ramp up to return.

The New York Yankees’ starting rotation has dealt with its fair share of injuries throughout the 2025 MLB season. Gerrit Cole and Luis Gil have both missed time, and so has Marcus Stroman. Stroman hasn’t pitched for the Yankees since April 11 against the San Francisco Giants and has only made three starts this season.