The Chicago White Sox reinstated outfielder Everson Pereira from the seven-day concussion injured list on Monday.
Pereira, 25, sustained the injury on June 17 after crashing into the wall following a leaping catch at Yankee Stadium.
He is batting .232 with four doubles, three home runs and seven RBIs in 21 games this season with the White Sox.
Chicago optioned outfielder Junior Perez, 25, to Triple-A Charlotte in a corresponding move.
Perez has batted .171 with three homers and six RBIS in 22 games since making his major league debut on June 18.
