Video Headlines February 16, 2023 5:54 pm Stevens: Important for team to show ‘belief' in Joe Mazzulla Brad Stevens explains why it was important for the Celtics to show belief and confidence in Joe Mazzulla as the team prepares for a grueling playoff run. Celtics Videos 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 1:08 EXCLUSIVE: Jaylen Brown reacts to series win over the Heat