Thousands of Brits travelled to Las Vegas to see Ricky Hatton fight Jose Luis Castillo, including Robbie Williams

Coleen McLoughlin watches her boyfriend, Manchester United's Wayne Rooney, carry Hatton's belts into the ring

Hatton, nicknamed the Manchester Mexican, enters the ring in sombrero and poncho - in Manchester City colours

Castillo hits the canvas at the start of round one, but referee Joe Cortez rules it was a slip rather than a knockdown

Hatton is fast out of the blocks, swarms all over Castillo in the first two rounds and lands the more hurtful punches

Castillo has a good third round, landing with some trademark left hands as the pace seems to be catching up with Hatton

But Hatton poleaxes Castillo with a sickening left to the body in round four and the Mexican is counted out

Hatton is now undefeated in 43 professional encounters and will now seek out a match with Floyd Mayweather

Mexican legend Marco Antonio Barrera and Manchester United's Wayne Rooney help Hatton celebrate his win