Liam Hendricks could make his return to the Chicago White Sox as early as Monday.

Hendriks, 34, was diagnosed with stage 4 non-Hodgkin's lymphoma on Jan. 9 and completed his final round of chemotherapy April 5. He began a rehab assignment on May 5 at Triple-A Charlotte, where he posted a 10.80 ERA in six appearances.

"When he throws [Friday], we'll wait and see the outcome, how he feels, what the numbers were [and] evaluate it really well," Pedro Grifol said. "He's close, so now we've got to really do a good job of just evaluating him, how close he really is to being Liam Hendriks, not how close he is just to pitch here in the big leagues."

Grifol already said that he does not expect Hendriks to appear in a game before the end of the weekend.