Joe Harris might need a second procedure on his left ankle, a decision that will be based on his progress over the next one to two weeks.

The Brooklyn Nets have acknowledged "setbacks" in Harris' rehab from a Nov. 29 surgery, pushing back an original four-to-eight-week timetable for return. 

Harris had the procedure to address a "little bone particle" in the ankle that sidelined him after he was injured Nov. 14.