Sean Brady became the first man to finish Leon Edwards at UFC Fight Night 255. Brady (18-1 MMA, 8-1 UFC) dominated Edwards (22-5 MMA, 14-4 UFC) en route to a Round 4 guillotine choke submission at the 1:39 mark of Round 4. The welterweight bout was the UFC Fight Night 255 main event at The O2 in London.

American Sean Brady scored the biggest win of his career with a superb submission over ex-welterweight champion Leon Edwards to silence the crowd at London's O2 Arena and catapult himself into contention for a shot at compatriot Belal Muhammad's title.

Leon Edwards is spiraling through a recurring nightmare and Sean Brady is its newest spectre. Brady entered enemy territory Saturday, handing Edwards his second consecutive loss in his native England. Adding salt to the wound, Brady became the first person to stop Edwards in a 28-fight career spanning 16 years.