Things got a little chippy toward the end of Wednesday night’s matchup between the Boston Celtics and Houston Rockets.

With the Celtics up by two with just over five minutes left, Rockets guard James Harden drove to the hoop and flailed his arms in an attempt to draw a foul. One of his wayward hands connected with Celtics forward Jonas Jerebko’s mouth, drawing a fair amount of blood.

Take a look at the sequence.

Harden was assessed a flagrant foul while Jerebko had to head to the locker room for medical attention for his bloodied lip.

Isaiah Thomas would sink both free throws to give the C’s a 4-point cushion.

This proved to be a key moment as the Celtics closed the game on a 22-13 run after the incident and won 120-109.

Thumbnail photo via Troy Taormina/USA TODAY Sports Images