By Edward Chaykovsky

British star Amir Khan (29-3, 19KOs) reveals that his rise in weight is not exactly done. The 27-year-old boxer, who fought at 135 and 140, officially moved up to 147-pounds last month and won the WBC silver welterweight title with a decision win over former champion Luis Collazo.

Khan's chin seemed to have problems at 135 and 140. He feels the move to 147, and eventually a rise to 154, will make his chin and body stronger. Khan has the frame and height to compete at 154, but it remains to be seen how he handles the top names at welterweight.

“The more fights I have at 147-pounds, the better I will get. I might finish my career off at 154-pounds – I have always said that. I may go up to light middleweight. But it would be amazing to win a world title at this weight and then go up and win one there. At the moment, 147-pounds is perfect for me. I am smarter now at this weight,” Khan told Bolton News.