WASHINGTON, D.C. -- First baseman Casey Kotchman was replaced in the fifth inning of Wednesday's game against the Nationals after straining his left hamstring.
"He's listed as day-to-day. We have to wait and see how he is tomorrow," manager Mike Redmond said. "I watched him going down that line, and he grabbed that thing right away, and then went down in a heap. Those things typically are pretty sore the next day."
The injury occurred on a chilly, 45-degree night.
Facing Gio Gonzalez, Kotchman tapped into a 1-6-3 double play. Hustling down the line, he stumbled over first base and immediately reached for the hamstring while tumbling to the ground.
Greg Dobbs replaced Kotchman at first base for the bottom of the fifth inning.
Kotchman, a slick-fielding veteran, won the starting first-base job as a non-roster invitee.
Joe Frisaro is a reporter for MLB.com. He writes a blog, called The Fish Pond. Follow him on Twitter