Athletics shortstop Bobby Crosby left Friday's game during the fifth inning with a strained right triceps muscle. Crosby told the Contra Costa Times that the injury is under his armpit and he possibly could have hurt his "lat" muscle. "I tried to play through it," Crosby said. "Swinging is not too bad, but when I was throwing I felt pain. Even when I was throwing the ball back to the pitcher it hurt bad." Crosby's status won't be known until he's evaluated today.