Navarro will be the primary catcher on days Marco Estrada starts on the hill, MLB.com reports.
Last season, when Navarro started 34 games behind the plate, he served as Estrada's personal catcher. He'll once again assume that role now that he's returned to the team. "Hell get playing time," manager John Gibbons said. "[Russell Martin] is our guy, but he'll be able to spell Russ here or there. ...He'll catch Marco some. We'll see how that develops some." Navarro has struggled at the plate this season, hitting .210 with six homers and 32 RBI over 85 games for the White Sox.