he beated Zab Judah in round 5 and also won the WPA Light Boxing Championship.
Amir Khan (born Amir Iqbal Khan on 8 December 1986 in Bolton, Greater Manchester), also known as King Khan, is a British boxer of Pakistani descent who is currently the unified IBF and WBA world light-welterweight champion. Khan won the WBA belt at the age of 22, making him Britain's third-youngest world champion after Naseem Hamed and Herbie Hide. As of 11 July 2011, he is ranked #14 in the Sports Illustrated pound for pound top 15 list, where he is the youngest on the list as well as the highest ranking from Western Europe.
He was previously in the lightweight division, where he held the Commonwealth, WBO Inter-Continental and WBA International titles. He also became the youngest British Olympic boxing medallist when he won silver at the 2004 Athens Olympics at the age of 17.