Amir Khan says being an underdog for the first time as a professional will motivate him against Saul ‘Canelo’ Alvarez in Las Vegas on 7 May.
Khan is jumping two weight classes to fight for his rival’s WBC middleweight title, at a catchweight of 155lb.
The 29-year-old Briton believes his superior speed will be decisive.
“For the first time I’m fighting someone who is heavier and also a bigger name, but that will bring the best out in me,” said Khan.
“Normally I’m the one who is supposed to win the fight and that puts a lot of pressure on you. This time I don’t feel that pressure.”
Khan, who weighed in at 147lb for his last contest, says he has felt “strong and explosive” during training and believes he may be fighting at his ideal weight.