British boxer Amir Khan beat Marco Antonio Barrera in their lightweight fight at the MEN Arena in Manchester on Saturday night.
Khan, 22, had his older opponent rattled early in the first round, before Barrera got a cut on his forehead after the pair clashed heads.
It made it hard for the Mexican to box and allowed Khan to take full control of the fight from the second round.
The fight was eventually stopped in round five by the ringside doctor.
The fight was Khan's second after his only defeat back in September 2008.
He now holds a record of 20 victories, one defeat and 15 knockouts, and is hoping his next fight will be for a world title.