Athletics right-hander Jarrod Parker left Saturday afternoon's start against the Cardinals with right hamstring tightness. He fell to the ground after delivering a pitch to Allen Craig in the fourth inning. Here's the play:
The trainer came out and helped Parker stretch the hamstring out, and he threw a few test pitches to see how it responded. That didn't go well, and he left the game. There's no word on whether he will go for further tests or how long he will sidelined, if at all.
Parker, 24, came into the start with a 6-6 record and a 4.27 ERA on the season, but he had been pitching much better of late. In his previous nine starts, he went 5-1 with a 2.59 ERA while holding opposing hitters to a .180/.242/.313 batting line.
The Athletics will already be without Brett Anderson until mid August due to a foot injury, so losing Parker on top of that would be a big blow.