The Miami Heat defeated the Boston Celtics, 100-96, in the NBA 2K26 Summer League at Cox Pavilion on Monday.

The upshot of the Heat’s summer-league victory Monday night against the Celtics was that meaningful boxes were checked off.

Hugo Gonzalez was clearly frustrated with his play against the Heat as he struggled for stretches of the game.

As an NBA rookie, guard Pelle Larsson helped the Miami Heat win the Las Vegas Summer League championship, played in 55 regular-season NBA games for the Heat and then played in each of the Heat’s four playoff games. But Larsson entered this offseason with more to prove and plenty to improve on.

LAS VEGAS — Jordan Walsh called his ejection Monday against the Heat a “rookie mistake.” His coach, Joe Mazzulla, watching from high in the bleachers of Cox Pavilion with his family, texted his young swingman and said he “loved” the fire.

Boston Celtics head coach Joe Mazzulla had a humorous reaction to Jordan Walsh's Summer League ejection in a win over the Heat.

The two historic Eastern Conference foes went at it in Summer League on Monday as both franchises look to regroup from trying seasons