What to Know

Tune into NBC Sports Boston or click here to stream Celtics-Cavs .

Celtics Pregame Live begins at 6:30 p.m ET ahead of tip-off at 7 p.m. ET at TD Garden.

Our Celtics Postgame Live crew will bring you postgame reactions from head coach Joe Mazzulla, key players and more.

The Celtics are playing their third of four preseason games ahead of their Oct. 22 season opener.

At long last, the Boston Celtics are back at TD Garden.

The Celtics host the Cleveland Cavaliers in their third of four preseason games Sunday night at 7 p.m. ET. The C's are 1-1 in the preseason to date after routing the Memphis Grizzlies on Wednesday and falling to the Toronto Raptors on Friday .

Will head coach Joe Mazzulla give his starters more run against a talented Cavs team that led the East

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