White Sox lefthander John Danks is scheduled to make his comeback Friday with a start in Chicago against the Marlins, sources say.

Danks' season debut comes 10 months after shoulder surgery. He's made four starts while rehabbing in the minors, one at Double-A Birmingham and three at Triple-A Charlotte.

Danks' return comes at an important time for the White Sox, who are missing Gavin Floyd, who is out for the year with an elbow injury.