(PHOENIX) - Milwaukee Brewers starter and former Huntsville Stars pitcher Yovani Gallardo has torn cartilage in his left knee and is expected to miss the first four weeks of spring training.
Gallardo will return to Milwaukee on Monday and have the arthroscopic procedure Tuesday. He then will return to the Brewers' camp to begin physical therapy.
Brewers spokesman Tyler Barnes said Sunday the right-hander had discomfort a few days ago after a throwing session. His knee swelled up afterward.
The 22-year-old Gallardo, expected to be a main cog in the Brewers' rotation, was 9-5 with a 3.57 ERA in 20 games last season, including 18 starts.
Gallardo was a valuable late-season pick-up for the Stars in 2006, helping them win the Northern Division's 2nd half title with a 5-2 record and 1.96 ERA in 13 starts.