The left MCL injury of Bucks All-Star Khris Middleton is a Grade 2 sprain and he is expected to miss the entire second-round series vs. Celtics, sources tell @TheAthletic @Stadium. The recovery of Grade 2 MCL places a potential Conference Finals in jeopardy for him as well.

— Shams Charania (@ShamsCharania) April 28, 2022