Hauser suffered an ankle sprain in the Celtics’ Game 1 loss last week against the Knicks after he landed awkwardly following a 3-point contest of OG Anunoby. He went through an intense workout on Monday with coaches on the floor at Madison square Garden.

Can the Knicks take a 3-1 series lead or will the Celtics pull even on the road? Here's how to watch this pivotal Game 4.

• WATCH NOW: Knicks vs Celtics Game 4 live for free with Fubo, (free trial), or with DirecTV Stream (free trial). When: Monday, May 12 at 4:30 p.m. PT/7:30 p.m. ET (5:30 p.m. MDT).

The Boston Celtics have had some injury concerns throughout the playoffs, and that is no different entering Game 4 against the New York Knicks.

The Celtics aren't directly involved in the draft lottery Monday night but the outcome could have implications on the offseason.