IndyCar driver gets annoyed with opponent during Indy 500 practice: 'F------ idiot'

The Indy 500 hasn’t officially begun yet, but that doesn’t mean tensions aren’t running high on day three of practice on Friday. 

Nolan Siegel took issue with Christian Rasmussen after he aggressively cut inside Siegel on a turn. The FOX broadcast aired Siegel’s communication with his crew following Rasmussen’s risky maneuver.

"Rasmussen is such a f------ idiot," Siegel said.

CLICK HERE FOR MORE SPORTS COVERAGE ON FOXNEWS.COM

Rasmussen was already on Siegel’s "idiot" list before that...