He 's had some other big wins too , which you may have heard a thing or two about .
Yep , Duffy submitted the Antrim native via first - round rear - naked choke in March 2010 .
Duffy 's had some other big wins too , which you may have heard a thing or two about .
Yep , Duffy submitted the Antrim native via first - round rear - naked choke in March 2010 .