CHICAGO (AP) -- The Chicago White Sox say Paul Konerko has a sprained medial collateral ligament in his right knee and will be evaluated daily.
Konerko got an MRI on Wednesday that confirmed the mild sprain. He was injured in the fifth inning of Tuesday night's game against Toronto while making a throw to second base.
The White Sox say the slugger is day to day.
Chicago is already without AL home run leader Carlos Quentin (broken wrist) and third baseman Joe Crede (sore back). It entered play with a one-game lead over Minnesota in the AL Central.
Konerko had just shown signs of breaking out of a season-long slump and was batting .356 over his last 28 games, including one stretch in which he homered in three straight games.