Maholm (knee) underwent reconstructive surgery Friday, Bill Shaikin of the Los Angeles Times reports. Maholm was placed on the 60-day disabled list on Aug. 4 because of the injury, and will soon begin on his road to recovery from a torn ACL. He will become a free agent in the offseason, so he will need to prove himself in spring training if he wants to find himself in a rotation at the start of the 2015 regular season.