Promoter Frank Warren has told BBC Radio 5 live Breakfast that Amir Khan is not yet ready for a big fight against unbeaten WBC welterweight world champion Floyd Mayweather.
Khan lost his WBA and IBF light-welterweight titles to American Lamont Peterson on a controversial points decision, prompting his former promoter Warren to make his comments.
However, Khan has said via his Twitter feed that a rematch with Peterson is 99% confirmed although he said it would not take place in Washington because he felt he had been a victim of a "hometown decision".
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