Less than 24 hours after saying he was stepping away from baseball, Yermin Mercedes was in uniform for the White Sox’ Triple-A Charlotte Knights for their game in Durham, N.C., on Thursday.

That word came from the White Sox, who learned from everyone else Wednesday that Mercedes, demoted from the major league club to Charlotte after falling into a prolonged hitting slump, said on Instagram that he was quitting.

The news broke during the Sox’ 7-2 loss to the Twins at Guaranteed Rate Field.