Celtics coach Joe Mazzulla said there are "a lot of things that we’re doing well, but then there’s things that we need to be extremely better at."

The Boston Celtics visit the New York Knicks in Game 3 of their best-of-seven Eastern Conference semifinal series Saturday.

If the Celtics are to avoid the dreaded 0-3 series deficit from which no team has ever escaped, they'll need to play better in the secnd half.