"It's probably the worst his thumb's been in a while," Rockies manager Walt Weiss said. "Every inning, we weren't sure if he was going to make it through the inning. But he's been real resilient with his hand injuries this year. He's got 14 wins and he's had to deal with some kind of hand injury for probably half his starts. So he's gotten real good at working around that thing."
De La Rosa has been one of the club's best starters this year with a 3.28 ERA and has not missed a start this year, a streak that could end when his next turn comes Saturday at Coors Field against the Reds.
"We may alter some things before his next start as far as his routine, but we're hoping he's going to be able to make his next start," Weiss said.
Ian McCue is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.