As Jayson Tatum and Onyeka Okongwu wrestled for the ball, Celtics coach Joe Mazzulla was watching from the sidelines with his thumbs in the air, likely signaling for the officials to call a jump ball.
Mazzulla’s excitement increased as the action heated up. He clapped vigorously as players from both sides rushed over to separate the two players.
No punches were thrown. There were no ejections. However, the grappling for the ball was growing increasingly intense until others came to diffuse the situation.
“It’s just competitive nature. It’s a fight,” Mazzulla said.