Tags: Martial Artist.
Alistair Cees Overeem (Dutch pronunciation: [ˈoːvəreːm] English /ˈoʊvəriːm/; born 17 May 1980) is a Dutch-English mixed martial artist and kickboxer signed with the Ultimate Fighting Championship. He is a former Strikeforce Heavyweight Champion Dream Heavyweight Champion K-1 World Grand Prix Champion and is the only fighter to hold world titles in both MMA and K-1 kickboxing at the same time.As of February 3 2014 he is #6 in official UFC heavyweight rankings.