White Sox pitcher John Danks is tentatively scheduled to begin another rehabilitation assignment in the next 3-4 weeks after MRIs revealed a mild Grade 1 strain in his left shoulder. The MRIs showed the strain of the subscapularis muscle in the shoulder. The strain has shown improvement from the previous MRI, which was conducted on May 23. There was no tendon or ligament damage, and his labrum is intact, according to an update released by the Sox on Tuesday.