Amir Khan has dropped his appeal with the International Boxing Federation as the Briton seeks an immediate rematch to avenge his controversial defeat to Lamont Peterson in Washington last month.
Golden Boy Promotions attributed the withdrawal to the fact that "there was only to be partial representation of fight officials involved" with the December bout.
Khan (26-2) lost two versions of his light-welterweight world titles in Peterson's hometown on a split decision, although the World Boxing Association has already ordered a rematch.
