Khan has stopped four of his five opponents

Khan has breezed through his first five professional fights and beat Belarussian Vitali Martynov in 75 seconds in Nottingham on Saturday.

Warren said: "We're making the right moves. We're not putting him top of the bill, so we are not having people on.

"Let's not start saying he should be fighting for a world title right now."

Khan remains ineligible to fight for a British title until he turns 20 next December but he could fight for a different belt beforehand.

Amir still has a lot to learn but he is adapting well as a pro. I can't tell you how good I think he looks Frank Warren

But Warren added: "For us to even be discussing his opponents after just five fights I find amazing.

"Muhammad Ali fought someone called Donnie Fleeman in his fifth fight while Sugar Ray Leonard fought a guy with four wins and 10 losses.

"Given his age, his experience and the pressures he had, Amir was fantastic (against Martynov).

"He still has a lot to learn but he is adapting well as a pro. I just can't tell you how good I think he looks."

Khan will soon learn the identity of his next opponent as he prepares for his sixth professional bout on 25 February, on the undercard of Danny Williams v Matt Skelton at London's ExCel Arena.