DENVER -- Jorge De La Rosa was in the Rockies' clubhouse Sunday morning after his 30-day rehab assignment was called off due to a development of fluid in his left elbow.
The left-hander has missed all 52 of the Rockies' games this year after undergoing Tommy John surgery in May 2011. In six Minor League starts, he is 0-1 with a 4.76 ERA.
"There's a little fluid there, which happens periodically when recovering from Tommy John," said manager Jim Tracy. "He is going to have an MRI Monday. But he's playing a light game of catch today, so it's not something we think is too severe."
De La Rosa, a 16-game winner in 2009, will have to wait a minimum of seven games to begin his next rehab assignment.