Athletics starting pitcher Kendall Graveman has been optioned to Triple-A Nashville, and right-handed reliever Ryan Cook has been recalled to the bullpen in his place, the club announced Sunday morning. Graveman made four starts for the Athletics but only reached the sixth inning in one of them. He conceded 15 earned runs in 16u2153 innings pitched.
Jesse Chavez is the presumptive favorite to take Graveman's place in the rotation. Chavez started in place of Jesse Hahn last Thursday while Hahn allowed a blister on his throwing hand to heal.