Floyd Mayweather has cranked up the heat ahead of his proposed showdown with Ricky Hatton by claiming he is on a different level to all other fighters. The two are due to meet in December, after a fight was agreed in principle between the representatives of the two men. Both hold unbeaten records and are widely regarded as the best in the business, but Mayweather feels his next opponent needs to step up a level if he is to compete. "I don't know who is the pound-for-pound number two in the world, but there is no fighter in the world like me," said Mayweather. Hatton has taken the scalps of the likes of Kostya Tszyu, Juan Urango and Shamba Mitchell, but Mayweather was unimpressed with his latest victory over Jose Luis Castillo. "Hatton is in for a rude awakening when we meet and he is in for a shock if he thinks I'm like any fighter he has ever faced," added Mayweather. "I'm in the business of blood, sweat and tears. "I saw Castillo get hit with a body shot, turn around, take five steps and sit down. I wasn't impressed. When I'm done with Hatton he'll think he was fighting four people."