Kell Brook retained his IBF welterweight title late in London late Saturday when he stopped fellow Englishman Frankie Gavin in six rounds.

Brook was an odds-on betting favorite going into the fight despite Gavin having a superb reputation from his amateur days when he won a world title.

But Gavin's fight plan turned out to be too ­passive and when the reigning champion found his full range in the sixth round he piled on the pressure and forced the stoppage.

Brook remains unbeaten with 34 wins, 23 by knockout, having taken the IBF title last year when he dethroned IBF champion Shawn Porter.