The usual fireworks and mayhem are missing as Ricky Hatton enters the arena in Boston to polite applause and cheers

Luis Collazo only briefly acknowledges the crowd as he makes his entry as defending WBA welterweight champion

The deeply religious Collazo - with his heavily tattooed torso - is immediately distinguishable in the ring

But the American, 25, gets off to a diabolical start and is sent tumbling to the canvas after 10 seconds

Both men regularly exchange blows in a pulsating, nail-biting contest but only rarely does Hatton show his usual venom

The Mancunian regularly walks into Collazo's punches

The bout fluctuates throughout the full 12 rounds as both men try to get on top

Collazo celebrates what he believes to be the successful defence of his WBA welterweight title...

...only to be disappointed when the belt is awarded to Hatton courtesy of a unanimous points decision by the three judges