Rockies pitcher Jorge De La Rosa (groin) won't make his season debut Tuesday, the Denver Post reports.
"We could bring him back, but he's not quite built up enough yet," manager Walt Weiss said. "We want to give him more time to build up some confidence in the groin."
The Rockies need a fifth starter for the first time Tuesday, and the team initially hoped De La Rosa would be ready to return from his groin injury at that point. Instead, he'll start for Triple-A Albuquerque Tuesday.
"They want to make sure I'm good," De La Rosa said. "I didn't pitch very much in spring."
Christian Bergman will get the call for Tuesday's start against the Giants in San Francisco. De La Rosa's return could come April 20 against the Padres in Colorado.