Pacers star Tyrese Haliburton left after uncomfortable fall, divides Celtics win.

After slipping awkwardly on the floor Monday night, Indiana Pacers player Tyrese Haliburton was taken off with a towel over his head.

Haliburton drove to the rim in the second quarter of his team's 133-131 triumph over the Celtics at Gainbridge Fieldhouse. Haliburton's leg gave out at the block, and he tumbled down to the ground performing splits.

He instantly slid over and grabbed his left leg, evidently in pain. His leg was unweighted when he was brought to the changing room.

The Pacers declared Haliburton out with a left hamstring strain at halftime. The injuries and how long it will sideline him are unknown, but he will get an MRI on Tuesday. Haliburton left with seven points and six assists.

Haliburton is having a stellar season with the Pacers. Former Iowa State standout averages career-high 24.2 points and league-high 12.7 assists this season. This season, he guided the Pacers to the NBA's inaugural in-season tournament championship game in Las Vegas, where they lost to the Lakers.

Pacers were 20-15 heading into Monday's contest. Last Saturday, they lost 118-101 against the Celtics.

In the third quarter sans Haliburton, the Pacers outscored the Celtics by 11 points to regain the lead. The Pacers had a chance to win at the buzzer after Buddy Hield's foul was reversed, but Bennedict Mathurin's jumper missed.

However, a second review found that Kristaps Porzingis fouled Mathurin on his final attempt behind the arc. He converted two of three free throws to give the Pacers a two-point victory.