New White Sox closer Chris Sale will undergo an MRI on his sore left elbow.
Chicago pitching coach Don Cooper said Sale will have the test Thursday. Manager Robin Ventura recently named Sale his closer after the left-hander made five starts but had tenderness in his elbow. He went 3-1 with a 2.81 ERA.
Sale made his debut as a closer Wednesday, entering in the eighth inning with the White Sox leading the Indians 3-0. He gave up an unearned run and blew the save before the White Sox won in 10 innings.
A first-round draft pick in 2010, Sale went 2-2 in 58 relief appearances last season.
He began this season in the starting rotation before Ventura moved him back to the bullpen.