With Athletics starting pitcher Jarrod Parker still in jeopardy of not making his start Thursday against the Cubs because of a hamstring injury, the top candidates to start if Parker is unable are Dan Straily and Sonny Gray, according to MLB.com.
Straily is already expected to be recalled for Saturday's start against the Royals, and Gray was scratched from his start Tuesday for Triple-A Sacramento presumably as insurance if Parker is sidelined.