SAN FRANCISCO -- Colorado starter Jorge De La Rosa left Tuesday night's 3-0 loss to the Giants in the bottom of the sixth inning with a left thumb contusion after giving up a two-run homer to catcher Buster Posey.
With one on and none out, Posey broke up a scoreless tie by depositing one into the left-field bleachers. Shortly after Posey finished rounding the bases, Rockies manager Walt Weiss and a team athletic trainer went out to the mound to speak with De La Rosa, who walked back to the dugout after a short consultation.
De La Rosa was seen shaking his hand after fouling off a pitch during his sixth inning at-bat.
"My thumb was really, really numb," De La Rosa said. "I don't like to make excuses, but you can't pitch with that thing. I made that mistake for Posey and paid for it."
De La Rosa said it's similar to the thumb pain that caused him to miss the final two weeks of the 2013 season, but that he will "for sure" make his next scheduled start Sunday against the D-backs.
"He's pitched with it a lot, but I think it was hurting pretty good this time," Weiss said. "I don't have any major concerns right now. We've seen this before with Jorge with his thumb. Hopefully it's just a bruised thumb again and he'll be fine."
De La Rosa was in the midst of a quality start, but the Rockies were being held scoreless by San Francisco lefty Madison Bumgarner, who completed a one-hitter. Right-handed reliever Matt Belisle was summoned from the bench to take over for De La Rosa.
Alex Espinoza is a contributor to MLB.com. Cody Ulm is an associate reporter for MLB.com.
This story was not subject to the approval of Major League Baseball or its clubs.