White Sox left-hander John Danks will begin a rehab assignment in three-to-four weeks if all goes as well as he recovers from a mild Grade 1 strain of the subscapularis muscle in his left shoulder.
Danks underwent two MRIs on Monday, one with dye. The tests, evaluated by team doctor Greg Nicholson, showed no tendon or ligament damage. The labrum is intact. The Sox also said the strain has shown improvement since his last MRI on May 23.
Team trainer Herm Schneider will start Danks on a rehabilitation and strengthening program starting Friday.
Danks had one rehab assignment for AAA Charlotte last Tuesday, pitching four innings. He experienced soreness in the following days.
Danks told reporters Monday he had a "Grade 1 tear."
"It's not thought to be anything real major,'' Danks said Monday night. "Just get some rest and get back it.
"It's frustrating because it feels good one day and then crap the next. It's good to know what we're dealing with.
"When you hear the word 'tear' it's kind of scary. But I don't think it's anything super major. It's just a bummer that it will take longer to get back than we first thought.''