Colorado Rockies left-hander Jeff Francis has undergone arthroscopic surgery on his pitching shoulder at a Denver-area clinic.
Francis had the operation done Wednesday at the Steadman Hawkins Clinic in Greenwood Village.
The Rockies say he'll begin rehabilitation immediately, but no date has been set for him to resume baseball activities.
Francis suffered inflammation in his left shoulder last season, when he went 4-10 with a 5.01 ERA. He came to spring training hoping to pitch through pain but decided last week to have surgery.
In five years with the Rockies, Francis has a 51-overall record with a 4.74 ERA.