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That's according to legendary boxing trainer Freddie Roach. Khan and Crawford do battle at at one of the most famous arenas in the world on Saturday but many are expecting it to be a
one-sided affair. Khan last fought against Samuel Vargas in September and won via unanimous decision but was knocked down in the fight. Crawford overcame Jose Benavidez in his last bout -
winning with an emphatic 12th round knockout. Although Crawford is on the rise in his career and is widely regarded as pound-for-pound best in the world, Roach believes his former fighter
Khan can upset the odds. "Amir [Khan] is my friend and I hope he wins but Crawford is the best fighter in the world today," he told Express Sport. "It's a very hard fight
for Amir. "Amir needs to go out there and box one round at a time which he can do with his foot and hand speed." Roach, who is boxing legend Manny Pacquaio's trainer, thinks
that if Khan goes looking to end the fight early, it could spell bad news for the Bolton-born boxer. "I believe he can [utilise speed]. Don't go looking for the knockout,
though," he added. "When you go looking for the knockout you put yourself in harm's way and that's when the fight can swing the other way. "If you have a bad chin
it's dangerous but he knows how to stay protected. "He knows he can't get excited and try and knock everyone out." Khan has previously fought the likes of Canelo Alvarez,
Marcos Maidana and Danny Garcia. He took a hiatus from the sport after he was knocked out by Alvarez in 2016 but returned with a 1st round KO victory over Phil Lo Greco last year. Crawford
became one of five boxers in history to have held four world title belts at once when he beat Julius Indongo for the junior-welterweight title in 2017.