Genki Sudo holds a notable win over an American mixed martial artist who has been a professional competitor since what year?
Nate Marquardt Nathan Joel "Nate" Marquardt (born April 20, 1979) is an American mixed martial artist competing in the middleweight division of the Ultimate Fighting Championship. A professional competitor since 1999, he is a former Strikeforce Welterweight Champion and a three-time Pancrase Middleweight Champion.
Kevin Knabjian Kevin Knabjian (born July 5, 1984) is an American mixed martial artist of Armenian descent. He has competed in various promotions, debuting in Shooto in 2003 and going on to fight in WEC and Bellator Fighting Championship.