The Athletics will likely turn to Cody Martin, who is number 11 on the starting rotation depth chart.
Jesse Chavez will not start Wednesday night's game against the Chicago White Sox after reporting "rib soreness" to such an extent that he is "having trouble even breathing," reports MLB.com's Jane Lee on Twitter. It appears likely that the A's will turn to number 11 starting pitcher Cody Martin, who pitched six innings in Triple-A Nashville's season finale on September 7 and conceded two runs on three hits with one walk and seven strikeouts.