Jun 25, 2017; Oklahoma City, OK, USA; BJ Penn (red gloves ) fights Dennis Siver (blue gloves) during UFC Fight Night at Chesapeake Energy Arena. Mandatory Credit: Sean Pokorny-USA TODAY Sports
Jun 25, 2017; Oklahoma City, OK, USA; BJ Penn (red gloves ) fights Dennis Siver (blue gloves) during UFC Fight Night at Chesapeake Energy Arena. Mandatory Credit: Sean Pokorny-USA TODAY Sports
Jun 25, 2017; Oklahoma City, OK, USA; BJ Penn (red gloves ) fights Dennis Siver (blue gloves) during UFC Fight Night at Chesapeake Energy Arena. Mandatory Credit: Sean Pokorny-USA TODAY Sports
Jun 25, 2017; Oklahoma City, OK, USA; BJ Penn (red gloves ) fights Dennis Siver (blue gloves) during UFC Fight Night at Chesapeake Energy Arena. Mandatory Credit: Sean Pokorny-USA TODAY Sports
Jun 25, 2017; Oklahoma City, OK, USA; BJ Penn (red gloves ) fights Dennis Siver (blue gloves) during UFC Fight Night at Chesapeake Energy Arena. Mandatory Credit: Sean Pokorny-USA TODAY Sports
Jun 25, 2017; Oklahoma City, OK, USA; BJ Penn (red gloves ) fights Dennis Siver (blue gloves) during UFC Fight Night at Chesapeake Energy Arena. Mandatory Credit: Sean Pokorny-USA TODAY Sports
Jun 25, 2017; Oklahoma City, OK, USA; BJ Penn (red gloves ) fights Dennis Siver (blue gloves) during UFC Fight Night at Chesapeake Energy Arena. Mandatory Credit: Sean Pokorny-USA TODAY Sports
Jun 25, 2017; Oklahoma City, OK, USA; BJ Penn (red gloves ) fights Dennis Siver (blue gloves) during UFC Fight Night at Chesapeake Energy Arena. Mandatory Credit: Sean Pokorny-USA TODAY Sports
Jun 25, 2017; Oklahoma City, OK, USA; BJ Penn (red gloves ) fights Dennis Siver (blue gloves) during UFC Fight Night at Chesapeake Energy Arena. Mandatory Credit: Sean Pokorny-USA TODAY Sports
Jun 25, 2017; Oklahoma City, OK, USA; BJ Penn (red gloves ) fights Dennis Siver (blue gloves) during UFC Fight Night at Chesapeake Energy Arena. Mandatory Credit: Sean Pokorny-USA TODAY Sports
Jun 25, 2017; Oklahoma City, OK, USA; BJ Penn (red gloves ) fights Dennis Siver (blue gloves) during UFC Fight Night at Chesapeake Energy Arena. Mandatory Credit: Sean Pokorny-USA TODAY Sports
Jun 25, 2017; Oklahoma City, OK, USA; BJ Penn (red gloves ) fights Dennis Siver (blue gloves) during UFC Fight Night at Chesapeake Energy Arena. Mandatory Credit: Sean Pokorny-USA TODAY Sports
Jun 25, 2017; Oklahoma City, OK, USA; BJ Penn (red gloves ) fights Dennis Siver (blue gloves) during UFC Fight Night at Chesapeake Energy Arena. Mandatory Credit: Sean Pokorny-USA TODAY Sports
Jun 25, 2017; Oklahoma City, OK, USA; BJ Penn (red gloves ) fights Dennis Siver (blue gloves) during UFC Fight Night at Chesapeake Energy Arena. Mandatory Credit: Sean Pokorny-USA TODAY Sports
Jun 25, 2017; Oklahoma City, OK, USA; Dennis Siver (blue gloves) reacts after beating BJ Penn (red gloves) during UFC Fight Night at Chesapeake Energy Arena. Mandatory Credit: Sean Pokorny-USA TODAY Sports