The Cavaliers outscored the Celtics 43-27 in the fourth quarter and won the game, 115-111. The Cavaliers snap Bostons seven-game win streak to improve to 18-3 while the Celtics fall to 16-4.
Jayson Tatum scored 33 points and Payton Pritchard 24 for the Celtics, who led 93-81 in the fourth before Mitchell took over. Kristaps Porzingis added 21 points for Boston.