The Sin City Celtics are undefeated no more, biut Boston Celtics shooting guard Baylor Scheierman has found his sea legs.

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.

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

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

But as painful as this offseason has been thus far for Celtics fans, those minutes up front for Boston is why big man Luka Garza opted to sign a two-year deal in free agency.

Pacome Dadiet and the New York Knicks might still be able to put their best foot forward despite some early Summer League struggles. New York’s one-sided defeat

Brad Stevens has been assigned the responsibility of finding hidden gems and prospects who could flourish with a new opportunity. Enter two intriguing players from the Timberwolves.