Tatum, Celtics muscle past feisty Cavs for 120-117 win

Boston snaps Cleveland's undefeated start to the season, reminding Cleveland - and the rest of the NBA - why they're the champs until someone knocks them off.

After one of his most complete games of the season, handing Cleveland its first loss of the season, Jayson Tatum has every reason to flex. (Photo by Winslow Townson/Getty Images)

BOSTON — The TD Garden floor was a couple of different shades of green, looking nothing like the usual parquet court.

This was courtesy of Tuesday night’s game against Cleveland being an NBA Cup matchup.

Different floor. Different kind of game.

Unfortunately for the Cavaliers, it was the same old Celtics who handed the Cavs (15-1) their first loss of the season, 120-117.