It comes via the Wawan Fighting Championship, where things were not looking so good for Hossam Quashua as he laid on his back with his opponent stalking him from above.  With his back against the wall, Quashua launched his leg into the sky, and it connected for an unlikely knockout.

This has to be the frontrunner for knockout of the year.  See it for yourself below:

Hat Tip – [SB Nation]

Via totalprosports.com