UFCThe Ultimate Fighting Championship (UFC) is a U.S.-based mixed martial arts organization, recognized as the largest MMA promotion in the world. The UFC is headquartered in Las Vegas, Nevada and is owned and operated by Zuffa, LLC. This promotion is responsible for solidifying the sport's postion in the history-books.
UFC is currently undergoing a remarkable surge in popularity, along with greater mainstream media coverage. UFC programming can now be seen on FOX, FX, and FUEL TV in the United States, as well as in 35 other countries worldwide.
If the fight is started on the ground and you give Serra a free submission hold on GSP, then sure, he can win. Outside of some incredibly lucky fluke or contrived scenario, Serra will get beaten standing up and on the ground. He couldn't put away Shonie Carter on the ground, his chances of putting away GSP are incredibly slim.