Joe Rock

Chicago White Sox pitcher Joe Rock is joining the major-league roster as David Sandlin heads back to Triple-A Charlotte. Rock was acquired from the Tampa Bay Rays last month and has been stretching out as a starter in the minors since joining the organization. He has limited MLB experience, with three career relief appearances, so fantasy managers should view this as a speculative move until his role becomes clearer. Rock's fantasy appeal comes from the chance that Chicago could use him for length, especially with the White Sox continuing to shuffle arms. He posted a 5.40 ERA over 13 games with Triple-A Durham before the trade, and only slightly improved with Charlotte, posting a 4.00 ERA over nine frames, so there is a clear risk in the profile. Given his unclear role, Rock is only worth monitoring in deeper formats for the time being.