http://sports.espn.go.com/mlb/spring...ory?id=3250617

PHOENIX -- Brewers starter Yovani Gallardo might have torn knee cartilage.

Brewers spokesman Tyler Barnes said Sunday the right-hander had discomfort a few days ago after a throwing session. His knee swelled up afterward, and the team was concerned he might have a cartilage tear.

Team physician William Raasch was examining him Sunday. Barnes said the team hoped to have more information after the examination.

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.