WBA/WBC/IBF/IBO middleweight world champion Gennady 'GGG' Golovkin, (35-0, 32 KO’s) and IBF welterweight champion Kell Brook, (36-0, 25 KO’s) took part in the mandatory 30-day weighin procedure as required by the World Boxing Council.

In a stunner of numbers, Brook outweighed Golovkin by 11 pounds. Brook weighed in at 176-pounds, while Golovkin was 165-pounds. Brook, who says he was struggling to make the 147 limit, is going up by 13 pounds to challenge Golovkin for his world titles at 160.

Their highly anticipated showdown takes place at The O2 on Saturday, September 10 in London, England. Presented by Matchroom Boxing and K2 Promotions, the middleweight world title clash will be televised on Sky Sports Box Office in the United Kingdom and Live on HBO World Championship Boxing® beginning at 5:30 p.m. ET/PT in the United States.

Gennady “GGG” Golovkin - "Kell Brook has my full respect and a great team behind him. It’s not easy for us to get opponents, he’s ready for me and I’m ready for him. Kell Brook is the biggest test to me, he’s a great champion, he’s moving up in weight but great fighters have done that and I know he’s a great boxer and he will test me the most. Thanks to Sky Sports and HBO, I can give the UK fans an amazing event and another big drama show.”
 
Kell Brook - “This is the biggest fight in world boxing. I’m the best Welterweight in the world and no-one wants me, he’s the best Middleweight in the world and no one wants him. I’ll be his size on fight night and I’m bringing the speed to Middleweight. To be the best you have to beat the best. I’m going to be so sharp and so powerful on fight night. No one has got the best out of me before but Gennady will bring that out in me and I’m excited to see that from myself. I always find a way to win and there’s going to be massive drama in the fight, it doesn’t get better than this and I’m doing this for the fans that have wanted me to step-up and show them what Kell Brook can really do.”