Corbin (elbow) has been playing catch from 105 feet at the Diamondbacks' Spring Training Facility, Steve Gilbert of the Arizona Republic reports.Corbin missed the entire 2014 season after undergoing Tommy John surgery. Although the recovery time is normally 12 months, the team sees Corbin's recovery more as a 15-month plan. He'll continue moving back 15 feet every week until he hits 150 feet. He went 14-8 with a 3.41 ERA in 2013.