Yankees manager Aaron Boone pulled Stroman after the Giants batted around in the first inning of New York's 9-1 loss.

NEW YORK (AP) — New York Yankees pitcher Marcus Stroman had a cortisone shot to treat swelling in his inflamed left knee. Stroman went to a hospital for scans after the 33-year right-hander mentioned pain to the team following Friday’s start, when he allowed five runs and got two outs in a rainy 9-1 loss to the San Francisco Giants.

Marcus Stroman was once an All-Star and Team USA hero, but now he’s getting booed off the mound in New York. After signing a $37M deal with the Yankees, Stroman's performance has tanked, his contract is causing controversy,