sentences:  He defeated Hasan Gul in the semi-finals and then Eyup Kuscu in the final to become the Heavyweight Champion of Turkey.He made his debut with the K-1 promotion in August 2007 at the "K-1 World Grand Prix 2007 in Hong Kong", where he defeated South Korean ssireum fighter Kim Dong-Wook in a reserve match for the 8-man Grand Prix taking part on that night.On November 2, 2007, Deniz took part in the Grand Prix at "K-1 Fighting Network Turkey 2007" but was defeated by Brazil's Vitor Miranda at the quarter-final stage.