De La Rosa, No. 2 in the rotation behind All-Star right-hander Ubaldo Jimenez, played long toss Friday and will throw a bullpen session Sunday. He will then take his regular turn against the Brewers next Friday.
Right-handed prospect Juan Nicasio will replace De La Rosa for Sunday's start against the Athletics.
Tracy said that the skipped start for De La Rosa is merely a matter of a team being cautious in Spring Training.
"If we were in the regular season, he would pitch on Sunday, but due to the way we're approaching situations like this [he will not]," Tracy said.
In a roster move Friday, Tracy announced that the Rockies have released veteran catcher Chad Moeller, who was in camp under a Minor League contract. With a crowd of candidates for the backup catcher job, the Rockies are giving Moeller, 36, a chance to find a job elsewhere.
Jose Morales, obtained in a winter trade with the Twins, and prospects Mike McKenry and Jordan Pacheco are candidates for backup duty. Also, highly touted Rockies catching prospect Wilin Rosario has recovered from a right knee injury that sidelined him last August. Rosario is available to play Saturday against the D-backs.