Driver hurls helmet at oncoming rival

Tony Stewart and Matt Kenseth were battling for the lead when both turned downward and hit the wall, effectively ending both their chances at a win.

Stewart's car was the more damaged, and as Kenseth passed him on pit road, Stewart fired a low strike right at Kenseth's hood. Hop-step, two hands ... that was Olympic-quality helmet tossing, friends.

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