Ireland’s Joseph Duffy suffered his third UFC defeat when he was stopped by James Vick at at Madison Square Garden.

The Donegal man had edged the opening round of the lightweight contest but was left reeling when the Texan landed a right uppercut that floored Duffy at the end of the second round.

The referee stepped in shortly afterwards, judging that the Irish man, now 16-3, was unable to defend himself.

Later, Georges St-Pierre ended a four-year exile from UFC in style to claim the middleweight title with an impressive victory over Britain's Michael Bisping.

The 36-year-old Canadian, who reigned as the welterweight champion for almost six years, is widely considered one of the sport's greats and returned to steal the show at Madison Square Garden with a third-round submission of Bisping.

In taking the Manchester fighter's belt, St-Pierre becomes only the fourth fighter in UFC history to become a champion in two weight divisions.