Al Horford drills buzzer-beating three to end Q1 Celtics on 21-4 run

Donovan Mitchell with deep contested three with the shot clock winding down - FS

Al Horford badly airballs the 3 to make it 1-13 from deep for the Cs tonight

Isaiah oops to Horford

Shabazz steals the ball and drills a three to beat the 3rd quarter buzzer