An MRI did not reveal any structural issues with Hammel's injured hamstring, Gordon Wittenmyer of the Chicago Sun-Times reports. The Cubs hope to have Hammel available after the All-Star break, but the injury may push him back to fourth or fifth in the rotation order, which means his first start of the second half will likely come in Cincinnati. Aside from the hamstring injury, Hammel had an excellent first half of the season, posting a 5-4 record, 2.86 ERA, 0.95 WHIP and 105:18 K:BB ratio over 103.2 innings (17 starts).