Denis Siver does some glove work during an Open Workout ahead of UFC Sydney 127 at Star City on February 22, 2011 in Sydney, Australia.
Denis Siver does some glove work during an Open Workout ahead of UFC Sydney 127 at Star City on February 22, 2011 in Sydney, Australia.
Dennis Siver of Germany punches BJ Penn in their featherweight bout during the UFC Fight Night event at the Chesapeake Energy Arena on June 25, 2017...
Dennis Siver of Germany punches BJ Penn in their featherweight bout during the UFC Fight Night event at the Chesapeake Energy Arena on June 25, 2017...
Penn punches Dennis Siver of Germany in their featherweight bout during the UFC Fight Night event at the Chesapeake Energy Arena on June 25, 2017 in...
Dennis Siver of Germany attempts to submit BJ Penn in their featherweight bout during the UFC Fight Night event at the Chesapeake Energy Arena on...
Dennis Siver of Germany celebrates after his majority-decision victory over BJ Penn in their featherweight bout during the UFC Fight Night event at...
Dennis Siver of Germany celebrates after his majority-decision victory over BJ Penn in their featherweight bout during the UFC Fight Night event at...
Dennis Siver of Germany punches BJ Penn in their featherweight bout during the UFC Fight Night event at the Chesapeake Energy Arena on June 25, 2017...
Penn punches Dennis Siver of Germany in their featherweight bout during the UFC Fight Night event at the Chesapeake Energy Arena on June 25, 2017 in...
Dennis Siver of Germany punches BJ Penn in their featherweight bout during the UFC Fight Night event at the Chesapeake Energy Arena on June 25, 2017...
Dennis Siver of Germany punches BJ Penn in their featherweight bout during the UFC Fight Night event at the Chesapeake Energy Arena on June 25, 2017...
Dennis Siver of Germany prepares to enter the Octagon prior to his featherweight bout against BJ Penn during the UFC Fight Night event at the...
Dennis Siver of Germany kicks BJ Penn in their featherweight bout during the UFC Fight Night event at the Chesapeake Energy Arena on June 25, 2017 in...
Dennis Siver of Germany kicks BJ Penn in their featherweight bout during the UFC Fight Night event at the Chesapeake Energy Arena on June 25, 2017 in...
Dennis Siver of Germany punches BJ Penn in their featherweight bout during the UFC Fight Night event at the Chesapeake Energy Arena on June 25, 2017...
Dennis Siver of Germany punches BJ Penn in their featherweight bout during the UFC Fight Night event at the Chesapeake Energy Arena on June 25, 2017...
Dennis Siver of Germany kicks BJ Penn in their featherweight bout during the UFC Fight Night event at the Chesapeake Energy Arena on June 25, 2017 in...
Dennis Siver of Germany kicks BJ Penn in their featherweight bout during the UFC Fight Night event at the Chesapeake Energy Arena on June 25, 2017 in...
Penn punches Dennis Siver of Germany in their featherweight bout during the UFC Fight Night event at the Chesapeake Energy Arena on June 25, 2017 in...
Penn punches Dennis Siver of Germany in their featherweight bout during the UFC Fight Night event at the Chesapeake Energy Arena on June 25, 2017 in...
Penn punches Dennis Siver of Germany in their featherweight bout during the UFC Fight Night event at the Chesapeake Energy Arena on June 25, 2017 in...
Penn punches Dennis Siver of Germany in their featherweight bout during the UFC Fight Night event at the Chesapeake Energy Arena on June 25, 2017 in...
Dennis Siver of Germany punches BJ Penn in their featherweight bout during the UFC Fight Night event at the Chesapeake Energy Arena on June 25, 2017...
Dennis Siver of Germany punches BJ Penn in their featherweight bout during the UFC Fight Night event at the Chesapeake Energy Arena on June 25, 2017...
Dennis Siver of Germany and BJ Penn trade punches in their featherweight bout during the UFC Fight Night event at the Chesapeake Energy Arena on June...
Penn Dennis Siver of Germany in their featherweight bout during the UFC Fight Night event at the Chesapeake Energy Arena on June 25, 2017 in Oklahoma...
Dennis Siver of Germany kicks BJ Penn in their featherweight bout during the UFC Fight Night event at the Chesapeake Energy Arena on June 25, 2017 in...
Dennis Siver of Germany kicks BJ Penn in their featherweight bout during the UFC Fight Night event at the Chesapeake Energy Arena on June 25, 2017 in...
Dennis Siver of Germany punches BJ Penn in their featherweight bout during the UFC Fight Night event at the Chesapeake Energy Arena on June 25, 2017...
Dennis Siver of Germany punches BJ Penn in their featherweight bout during the UFC Fight Night event at the Chesapeake Energy Arena on June 25, 2017...
Dennis Siver of Germany kicks BJ Penn in their featherweight bout during the UFC Fight Night event at the Chesapeake Energy Arena on June 25, 2017 in...
Penn and Dennis Siver of Germany face off during the UFC Fight Night weigh-in on June 24, 2017 in Oklahoma City, Oklahoma.
Dennis Siver of Germany poses on the scale during the UFC Fight Night weigh-in on June 24, 2017 in Oklahoma City, Oklahoma.
Dennis Siver of Germany poses on the scale during the UFC Fight Night weigh-in on June 24, 2017 in Oklahoma City, Oklahoma.
Dennis Siver of Germany poses on the scale during the UFC Fight Night weigh-in on June 24, 2017 in Oklahoma City, Oklahoma.
Tatsuya Kawajiri squares off with Dennis Siver in their featherweight bout during the UFC Fight Night event at the O2 World on June 20, 2015 in...
Tatsuya Kawajiri squares off with Dennis Siver in their featherweight bout during the UFC Fight Night event at the O2 World on June 20, 2015 in...
In their featherweight bout during the UFC Fight Night event at the O2 World on June 20, 2015 in Berlin, Germany.
Tatsuya Kawajiri punches Dennis Siver in their featherweight bout during the UFC Fight Night event at the O2 World on June 20, 2015 in Berlin,...
Tatsuya Kawajiri punches Dennis Siver in their featherweight bout during the UFC Fight Night event at the O2 World on June 20, 2015 in Berlin,...
Tatsuya Kawajiri punches Dennis Siver in their featherweight bout during the UFC Fight Night event at the O2 World on June 20, 2015 in Berlin,...
Tatsuya Kawajiri squares off with Dennis Siver in their featherweight bout during the UFC Fight Night event at the O2 World on June 20, 2015 in...
Tatsuya Kawajiri punches Dennis Siver in their featherweight bout during the UFC Fight Night event at the O2 World on June 20, 2015 in Berlin,...
Tatsuya Kawajiri squares off with Dennis Siver in their featherweight bout during the UFC Fight Night event at the O2 World on June 20, 2015 in...
Tatsuya Kawajiri squares off with Dennis Siver in their featherweight bout during the UFC Fight Night event at the O2 World on June 20, 2015 in...
Tatsuya Kawajiri of Japan celebrates after defeating Dennis Siver in their featherweight bout during the UFC Fight Night event at the O2 World on...
Tatsuya Kawajiri of Japan celebrates after defeating Dennis Siver in their featherweight bout during the UFC Fight Night event at the O2 World on...
Dennis Siver of Germany attempts a submission against Tatsuya Kawajiri of Japan in their featherweight bout during the UFC Fight Night event at the...
Dennis Siver of Germany lunges at Tatsuya Kawajiri of Japan in their featherweight bout during the UFC Fight Night event at the O2 World on June 20,...
Dennis Siver of Germany punches Tatsuya Kawajiri of Japan in their featherweight bout during the UFC Fight Night event at the O2 World on June 20,...
Tatsuya Kawajiri of Japan throws a back fist against Dennis Siver of Germany in their featherweight bout during the UFC Fight Night event at the O2...
Dennis Siver of Germany rests in his corner between rounds against Tatsuya Kawajiri of Japan in their featherweight bout during the UFC Fight Night...
Tatsuya Kawajiri of Japan punches Dennis Siver of Germany in their featherweight bout during the UFC Fight Night event at the O2 World on June 20,...
Tatsuya Kawajiri of Japan attempts a takedown against Dennis Siver of Germany in their featherweight bout during the UFC Fight Night event at the O2...
Tatsuya Kawajiri of Japan lands a punch to the face of Dennis Siver of Germany in their featherweight bout during the UFC Fight Night event at the O2...
Dennis Siver of Germany kicks Tatsuya Kawajiri of Japan in their featherweight bout during the UFC Fight Night event at the O2 World on June 20, 2015...
Dennis Siver of Germany kicks Tatsuya Kawajiri of Japan in their featherweight bout during the UFC Fight Night event at the O2 World on June 20, 2015...
Tatsuya Kawajiri of Japan lands a kick to the chest of Dennis Siver of Germany in their featherweight bout during the UFC Fight Night event at the O2...
Dennis Siver of Germany stands in his corner before facing Tatsuya Kawajiri of Japan in their featherweight bout during the UFC Fight Night event at...