Jusuf Nurkić Tosses Pacers Fan's Phone In Courtside Altercation

Jusuf Nurkić didn't play a single minute Sunday night, but the Blazers big man got some action after the game ... walking over to a heckling Pacers fan and tossing his phone.

The incident went down following the Blazers' 129-98 blowout loss to Indiana ... when Nurkić apparently heard a fan say something he didn't like, confronted him with an intimidating stare-down, and chucked his cell.

The fan was completely shocked ... saying, "Why'd you throw my phone?"

Security staff intervened by stepping in between Jusuf and the fan ... and the Portland center ended up walking away before things escalated further.

It's unclear what exactly was said that led up to the altercation ... but it's clear whatever words were exchanged didn't sit well with the Bosnian hooper.

Nurkić -- who's sidelined at the moment due to plantar fasciitis -- wasn't required to talk to the media after the game ... so details surrounding what happened are minimal.

Nurkic's showdown with the fan is an ongoing theme this season -- NBA players have been clearly fed up with the hecklers "taking it too far" ... prompting the ballers to take matters into their own hands.

Guys like LeBron James and Carmelo Anthony have had fans tossed from the arena ... and most recently, their teammate Russell Westbrook confronted a fan before a game for calling him "Westbrick."