Add Marcus Morris (again) to the Boston Celtics' lengthy list of injured players who will likely miss some time.

After twisting his ankle against the Portland Trail Blazers and missing Sunday's matchup against the Sacramento Kings, Morris sprained his ankle again on Monday against the Phoenix Suns late in the third quarter. Going up for a heave as the clock wound down, Morris was contested by Troy Daniels -- who was called for a foul -- and Morris came down on the guard's foot.

#NEBHInjuryReport: Marcus Morris underwent X-rays on his right ankle that came back negative. “We’ll see how it responds,” says Brad Stevens. — Boston Celtics (@celtics) March 27, 2018

Morris made all three free throws before hobbling off to the locker room.

The big man might miss some time, which is a significant loss -- Morris has scored 20 or more points in three straight games after dropping 20 on 6-for-8 shooting against the Suns. But the Celtics will need him healthy for the postseason, and ankle injuries can't really be tested. The only way to get better is to rest, ice and give it time to heal.

Still, Morris himself apparently isn't particularly concerned.