MANCHESTER (AFP) - It is less than a year since Amir Khan was separated from his senses inside a minute, but he is still adamant Saturday's world title fight is not too soon for him. Five years after winning an Olympic silver medal aged 17, Khan challenges Andreas Kotelnik for the World Boxing Association (WBA) light-welterweight title at the MEN Arena in Manchester. Khan lost his unbeaten professional record at the same venue in September when he was knocked out in 54 seconds by Colombian Breidis Prescott, but has since beaten Irishman Oisin Fagan and Mexico's former world champion Marco Antonio Barrera. The world title shot against Ukrainian Kotelnik, who will be making his third defence, came as a surprise since Khan has operated at lightweight his entire career. But the Briton feels he will be improved at light-welterweight and hopes victory over Kotelnik, 31, will launch a career fighting in America, where he now prepares for fights at trainer Freddie Roach's gym in Los Angeles. "I've been a pro four years and I've tasted defeat, been knocked down and got off the floor," Khan told AFP. "It has gone quickly but now I'm ready for a world title fight. "Kotelnik is a patient sort of fighter with a good defence but I'm going to put a different sort of fight on him. "By next year I want to fight in Vegas a few times. I have built up my fan base in Britain, now I want to do the same in America. I would work well over there, but first of all I have to take care of Kotelnik and beat him in style. "This fight is going to take me on to bigger fights. Once I win the opportunities will be massive. I want to fight people like Juan Manuel Marquez and great fighters like Ricky Hatton in the future. I have to beat Kotelink to get to the bigger fights. "Light-welterweight is the right weight for me. Making the weight has been easier this time because at lightweight the last five pounds used to be tough to lose. This time I've been able to hold on to more muscle." Roach has been in Khan's corner since the British boxer was flattened by Prescott. While training at Roach's gym, the 22-year-old has sparred with Filipino Manny Pacquiao, who is regarded as the world's best pound-for-pound boxer over all weight divisions. And Roach is confident Khan will become as successful as Pacquiao, who knocked out Hatton in his last fight in May. "I do think Amir can be the pound-for-pound No 1," Roach told AFP. "Amir is hungry like Manny and I truly believe he's my next superstar. He can already hold his own with the best pound-for-pound fighter in the world in sparring and Manny was going at it full guns blazing. "Manny was knocked out twice early in his career but he came back to win world titles. It's how you come back from it that counts and it can happen to anybody. But we have prepared not to make those mistakes again. "If a knockout comes, it comes. I don't want Amir going in there looking for the knockout - he made that mistake against Prescott and paid for it." Kotelnik won the title on another trip to Britain last year when he stopped Welshman Gavin Rees and has shrugged off the hype around Khan's potential. "What has Khan done apart from beating up an old man in Barrera and getting knocked out by someone no one had heard of?" he said. "Everyone is talking about him like he's some kind of legend, but they won't be after I've knocked him out for the second time in his career. I can't really see the fight going beyond six rounds, and if I land early then I'll knock him out even quicker than Prescott did."