Robertson took his first loss of the season Tuesday as he allowed a game-ending three-run home run to Josh Donaldson. Robertson easily picked up the final out of the eighth inning in a tough situation, but all went by the wayside when he came on for the ninth. Josh Thole and Jose Reyes led off the inning with hard-hit balls, and then Josh Donaldson took him deep to right on an outside fastball. The home run ballooned Robertson's ERA from 0.98 to 2.41. There should not be too much cause for concern here - Robertson still has an absurd 29:2 K:BB in under 20 innings, and his hold on the White Sox's closer role is unquestioned.