Here is how bad it got: In the sixth inning, as the downpour continued and the Yankees’ pitcher clearly could not grip the ball, manager Aaron Boone lobbied essentially for his own team to be mercy-ruled.

NEW YORK — 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.

The New York Yankees continue to deal with injuries to their pitching staff as Marcus Stroman becomes the latest to go down.Stroman received a cortisone shot in his left knee to reduce swelling.“The MRI was good,