Fans and players were stunned on Monday night when Portland Trail Blazers center Jusuf Nurkic suffered a horrific season-ending injury in a game against the Brooklyn Nets.

During the game’s second overtime, Nurkic jumped for a rebound at the net and came down at the wrong angle. His left leg appeared to snap above the ankle.

Then, as he writhed in agony, a referee attempting to step over him inadvertently kicked the injured foot.

Players winced, covered their eyes, bit their shirts and looked away as fans chanted the fallen player’s name.

Warning: The video in the tweet below shows the injury. Don’t click play if you’re not prepared to see it. Story continues below the tweet.