The big news is that UFC heavyweight champion Randy Couture weighed in at 220 pounds, while challenger Brock Lesnar weighed in at 265. Lesnar will most certainly gain 10 pounds through rehydration before entering the Octagon on Saturday night, giving him a weight advantage of about 55 pounds. This is a huge deal for Lesnar, as it means he won't be forced to cut any more weight than usual. If anything, this should give him an edge over his opponent. Couture also appeared to lose some weight, but it's possible he was already down when Lesnar arrived at the gym. Whatever the case may be, this is good news for both men: It shows that Lesnar isn't going into this fight overweight or dehydrated, which is important because he has weathered criticism from some fans and media members for past fights where they felt he was too heavy or not heavy enough. It's also worth mentioning that Couture's wrestling background could play a role in this fight. Since wrestling uses less muscle mass than other combat sports, it's possible that Couture was already down when Lesnar showed up for their workout. If so, then Couture might have been able to use his experience as a wrestler to his advantage by choosing his battles wisely and focusing on takedowns rather than power strikes. This would have given him a better chance of winning the fight without getting submitted himself.