August 19, 2021 11:26 am Stevens stresses importance of ‘edge and grit' for 2021 C's Brad Stevens discusses what he’d like to see out of the Celtics this coming season and how they can be a team Boston can get behind. Celtics Videos 2:35 Celtics earn dominant series win over Heat 0:51 Jayson Tatum: ‘Lazy to say teams can out-tough us' 3:20 EXCLUSIVE: Sam Hauser on closing out Heat in Game 5 at home 2:58 Highlights from Mike Gorman's final game as Celtics broadcaster 3:41 HIGHLIGHTS: Celtics breeze past Heat, advance to Conference Semifinals