Celtics put an end to Cavaliers' perfect start with first loss of the season

Cleveland mounted an impressive comeback, shaving a 21-point deficit to just two in the third quarter. Donovan Mitchell sealed the game with a spectacular rainbow 3-pointer with only 24 seconds remaining, extending their lead to four points. Despite Tatum sinking just one of two free throws, he made a critical defensive play by clobbering Mitchell on the other end, resulting in the Cavaliers guard needing medical attention on the floor.

Mitchell eventually stepped to the line and sank both free throws, but Boston inbounded the ball without trouble and passed it downcourt for an easy Al Horford dunk to clinch it.

Tatum sank six of Boston’s 22 3-pointers, and added seven assists for Boston’s third straight win.

Mitchell scored 35 points, and Evan Mobley had 22 points and 11 rebounds for the Cavaliers, who were the fourth team in NBA history to open the season with 15 wins in a row. The 15-game winning streak was longest in Cavaliers franchise history.