The Sixers announced on Friday that second-year forward/center Arnett Moultrie underwent surgery on his left ankle Thursday and will be out until some after the new year. Moultrie 22 played limited minutes in first NBA season on the floor for just 11.5 per night in 47 games. He previously injured his left ankle during a pre-draft workout in 2012 a sprain that caused him to miss summer-league play once drafted and dogged him throughout the early portion of last season. When on the floor Moultrie averaged 3.7 points and 3.1 rebounds. The Sixers selected Moultrie 27th overall out of Mississippi State after originally selecting forward Maurice Harkless 15th. The Sixers traded a future first-round pick to the Miami Heat for the rights to Moultrie.