If you’re even the least bit squeamish, you should probably avoid watching this video of Boston Celtics star Gordon Hayward breaking his leg in Tuesday night’s NBA season opener.

In the video above, you see Hayward go for an alley oop and come down incredibly awkwardly on his leg.

As Hayward rolls around on the ground in obvious pain, you can see why. According to reports, Hayward broke his leg and dislocated his ankle, ending his 2017-18 season.

Hayward was one of the top free agents this offseason, electing to leave the Utah Jazz to sign with the Boston Celtics and reunite with his college coach, Brad Stevens.

[YouTube]