KO of the Week: Dennis Siver vs. Naoyuki Kotani

Jun 9, 2015 1:12
Featherweight Dennis Siver uses his power and lands a huge left hook on Naoyuki Kotani to end the fight with a knockout victory. Siver aims to do the same thing when he faces Tatsuya Kawajiri during the main card at UFC Fight Night in Berlin, Germany.