This is a potentially serious injury, but he is already on blood thinners, and there is optimism he could return for the playoffs.

Lillard has been diagnosed with deep vein thrombosis (a blood clot) in his right calf, the Bucks announced Tuesday night. A timetable for a possible return this season has not been reported. The veteran guard is "on blood-thinning medication, which has stabilized the DVT," the Bucks said.