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. Manager Aaron Boone said Stroman still had “discomfort” in his knee after throwing a live batting practice session in Tampa, Florida, on Friday and will be reevaluated before the team figures out the next step in his rehabilitation process. Stroman hasn’t pitched since allowing five runs in two-thirds of an inning against the San Francisco Giants on April 11.