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This is what happens when hurdling doesn't go as planned.

The Pittsburgh Steelers' Antonio Brown tried to hurdle Cleveland Browns punter Spencer Lanning during a return in the second quarter of Sunday's game. That didn't work out so well, as Lanning took a pretty hard kick to the face.

For anyone who didn't know it before, players aren't allowed to kick other players in the face.

Update: Sept. 11 at 6:27 p.m. ET

Brown has been fined $8,200 by the NFL for the incident, according to NFL Network's Ian Rapoport:

--End of Update--

Update: Sept. 7 at 8 p.m. ET

Brown talked about the kick after the game, via ESPN.com's Scott Brown:

No intent to hurt him. I had my mind made up that he was going over me. I thought he was going low and I tried to leap over him. It was just a bad outcome of a play.

Lanning showed off his sense of humor with a simple tweet after the contest, which the Steelers won 30-27:

[Spencer Lanning]

--End of Update--

Update: Sept. 7 at 10:10 p.m. ET

It didn't take very long for Brown's kick to get mixed with The Karate Kid. 

[Around the NFL, Vine; h/t Lost Lettermen]