Athletics pitcher Jesse Chavez has a non-displaced rib fracture and his season is over, MLB.com's Jane Lee reports.
The 32-year-old righty predictably regressed this season, posting a 4.18 ERA compared to a 3.45 ERA in 2014. That said, his 3.86 FIP was almost identical to his 3.89 FIP from last season, so that is probably a good gauge of his true talent. He should compete for a spot at the back of Oakland's rotation next spring. Cody Martin will make the start Wednesday against the White Sox and could stick in Oakland's rotation down the stretch.