Kelly (shoulder) is an option to start for Boston on Saturday, Mass Live reports.

EDGE Analysis

Kelly tossed his third rehabilitation start Monday, getting his pitch count up to 92 and pitching 6.1 scoreless innings for Triple-A Pawtucket. He allowed five hits and a walk while striking out 10. The Red Sox were rained out Monday, forcing them to use two pitchers in a doubleheader Wednesday. This means they'll need a fifth starter Saturday, and Kelly would be pitching on normal rest.