Rockies manager Jim Tracy challenged Dexter Fowler, who started in center field Wednesday but has lost the starting job to Tyler Colvin. In Wednesday's lineup, Colvin started in right field and Michael Cuddyer moved from right to first base -- with Todd Helton resting. But for the most part, center now belongs to Colvin.
Tracy said, "I told Dexter, 'Make me play you, too; make it real hard for me. Don't make it easy on me. I like it when it's real hard.'"
Colvin entered Wednesday hitting .303.
"He's gotten on base and he's done a nice job against right- and left-handed pitching," Tracy said.
Pitcher Jorge De La Rosa, completing his comeback from Tommy John surgery in his left elbow, will make his scheduled start for Double-A Tulsa against Northwest Arkansas on Thursday. De La Rosa was removed after one inning Saturday because of tightness in his left forearm, but that was described as a normal setback during injury rehab.
If all goes well, De La Rosa is scheduled to pitch for Triple-A Colorado Springs on Tuesday and on May 27 before joining the Rockies' rotation on June 2 at Arizona. De La Rosa was 5-2 with a 3.51 ERA through 10 starts last season when he suffered the injury during a game against the D-backs.
Veteran first baseman Jason Giambi said the Rockies gathered in San Francisco to discuss their need for a quick turnaround. The team entered Wednesday 14-21 but fortunate that the first-place Dodgers were the only team above .500.
Giambi said the team has to guard against exhausting itself. Of the first 35 games, 18 were decided by one or two runs. The Rockies are 7-11 in those games and have spent a good amount of time trailing in close games.
"It's more exhausting to lose the way we've been losing than to get blown out, 15-1," Giambi said. "You use everybody because you're in the game but you're not quite getting over the hump. You're trying to fit pieces of the puzzle that sometimes you wouldn't normally go to.
"When you're winning, 2-1, you're like, here's my seventh-inning guy, my eighth-inning guy, my closer. But when you're down a run you're tinkering. Do I save Jason until the end of the game or pinch-hit him? You're using your bullpen. It's actually more exhausting. Before you know it, you're using more guys trying to come back."