Center Greg Oden sat out Heat practice on Wednesday in New York.
The big man reportedly had swelling in his left knee.
Oden sat out two-days after participating in 5-on-5 drills.
The Heat signed the former top draft pick knowing it would be a long road back.
Oden has battled a career-threatening knee injury for years.
Miami is hoping to have Oden in game shape in time for the playoffs.
The Heat have not given a specific timetable for his return to game action.
The Heat play the Brooklyn Nets on Thursday.