Cardinals center fielder Dexter Fowler bruised his left knee against the Pittsburgh Pirates when he crashed into the wall trying to catch a long drive by Adam Frazier that turned into an inside-the-park home run. Frazier's shot off John Brebbia in the seventh inning Saturday night hit just a foot from the top of the wall. After banging into the fence, Fowler crumpled to the ground and stayed down as Frazier circled the bases. Fowler was replaced in center by Randal Grichuk. The Cardinals won the game 4-3. "Anytime you see a teammate look like he seriously hurts himself, you hate to see that," Cardinals starter Matt Carpenter said postgame. "It ended up being a big run, but you care more about your teammate than the run at the time. Thankfully we were able to come back and win the game." X-rays on Fowler's knee came back negative, and Cardinals manager Mike Matheny said he will get an MRI on Sunday.