Gennady Golovkin will defend his middleweight world title belts against welterweight titleholder Kell Brook next Saturday (HBO, 5:30 p.m. ET/PT) at the O2 Arena in London, but one of his three major belts will not be at stake.Golovkins WBA title, the first one that he won in 2010 and since has defended 16 times, will not be on the line. His WBC and IBF titles, however, will be.While the WBA granted Golovkin a special permit to face Brook, the organization declined to sanction it as a world title fight because Brook has never boxed in the 160-pound division and is moving up two weight classes to challenge Golovkin, considered by many the most fearsome puncher in boxing.What I most regret is that there are no boxers at 160 pounds who will fight against Triple G, and Brook has to move up two divisions to fight against him, WBA president Gilberto Mendoza Jr. said in making the announcement.The Golovkin team was disappointed in the ruling.K2 Promotions managing director Tom Loeffler, Golovkins promoter, said that while the other organizations agreed to sanction the bout with no issues, somehow the WBA thought it was too dangerous for a welterweight to move up to middleweight to fight the biggest puncher in boxing. I guess that is a compliment to GGG as they sanctioned [Adrien] Broner moving up two divisions [from lightweight to welterweight] to fight Paulie [Malignaggi in 2013] and Roy Jones moving up two divisions [from light heavyweight to heavyweight] to fight John Ruiz [in 2003] for WBA titles, and Kell Brook is undefeated and considered a top pound-for-pound boxer.If Brooks size was an issue for the WBA, it appears to have been misplaced. At the WBC-mandated seven-day weight check on Friday, Golovkin (35-0, 32 KOs) weighed 162.9 pounds at his training camp in Big Bear Lake, California, and Brook (36-0, 25 KOs) weighed 167.8 pounds at his training camp in Sheffield, England.For middleweight world title fights, the WBC rule states that fighters must be no more than 5 percent over the middleweight division limit, meaning not more than 168 pounds.If Golovkin defeats Brook and secondary titlist Daniel Jacobs (31-1, 28 KOs) retains his belt in a rematch against former junior middleweight titleholder Sergio Mora (28-4-2, 9 KOs) on Friday (Spike, 9 p.m. ET) in Reading, Pennsylvania, Mendoza said the organization will order the mandatory bout between Golovkin and Jacobs next.Cheap Jerseys . -- Patrick Reed got an early start in golf. China Jerseys Cheap . -- Patrick Reed got an early start in golf. http://www.nbajerseyschinawholesale.com/ . Howard Ganz, an MLB lawyer, said in a letter to U.S. District Judge Edgardo Ramos that Rodriguezs claims do not come "remotely close" to what is needed to overturn an arbitration decision in federal court. Wholesale NBA Jerseys . Speaking Thursday on TSN 1050 Thursday, the Leafs GM also touched on the questions surrounding the teams leadership and the struggles of his big-name free-agent signing. “Its not from lack of effort from the coaching staff. Authentic NBA Jerseys Cheap . The Lightning are 2-0 so far on a four-game road trip, giving the club five straight wins as the guest and improving Tampas away record this season to 11-8-2.Toto Wolff says Mercedes nearly peed their pants as Daniel Ricciardo slashed away at Nico Rosbergs lead in the final laps of the Singapore Grand Prix.Rosberg had looked comfortable in the latter part of the race, but a late switch to super-softs by Ricciardo changed everything. The Australian started drastically cutting away at Rosbergs lead, which had been around 25 seconds, eventually crossing the line 0.4s behind the Mercedes.Mercedes boss Wolff ?says it was a nervy period on the pit wall.Yeah we nearly peed our pants at the end, Wolff told Sky Sports F1 after the race. It was so close and how it should be in Formula One. Four really quick cars, different strategies and I must really take my hat off to Red Bull as well, they pulled off a great strategy at the end.We couldnt do that because we would have lost the lead ... Ricciardo out of the blocks with an amazing pace, it was really exciting at the end.Ironically the late drama was triggered by Mercedes decision to bring in Hamilton for tyres in a bid to get him back onto the final spot of the podium, whicch he did by emerging clear of Ferraris Kimi Raikkonen.dddddddddddd However, that meant Ricciardo then pitted himself to cover off Raikkonen, leaving Rosberg in no mans land out in front as he would not have been able to emerge in front if he had stopped himself.At that moment we concentrated on getting Lewis back to third but equally I think that Ricciardo or Red Bull at that stage thought about pitting him. It was their only chance actually of making it, but you are right, we took Lewis out of the game and Raikkonen out of the game and gave them the possibility.Rosberg had to been due to pit himself but Wolff says a late call was made to keep the German driver on track after seeing Ricciardos blistering first lap on the super-soft tyres.We lost the gap [needed to emerge in the lead] in that first lap. We were planning to pit and then Daniel put out a stunner and the gap shrank and was gone so we needed to just make it to the end. ' ' '