Amir Khan and Kellbrook have a rematch clause in their contract, with the pair now set to face each other in a British grudge match

AMIR KHAN has a clause in his contract that allows him to fight Kell Brook if he loses their February 19 grudge bout.

Brook, 35, however, claims that his rival would not dream of accepting the offer once he's done with him.

Brook has made it a point to get off to a great start and expects to see both boxers show speed and power.

Sky Sports spoke to the Sheffield fighter, saying: "I believe that there is a Rematch Clause and I'm not certain that he will want to take that clause or not with my fight.

"I believe there will be fireworks. As soon as the bell rings, I'm going out marching and heading straight for him.

"He's likely to want to do it the same, and there will be speed and power and everything you'd want in a boxing fight in this fight.

"I know there will be a rematch, if Amir Khan wishes that."

Khan can get another beating if he wants."

Khan said last week that he would be retiring after his fight with Brook, regardless of what the outcome was.

Khan, 35, immediately hinted at a U turn after a week of successful sparring with boxers many years his senior.

He even trained with Terence Crawford, his ex-rival - and he said he feels so good that he may do another training camp to prepare for a future fight.

Floyd Mayweather may be his next opponent.

Brook says Brook wants to fight the winner in their contest.