Enormously popular in Britain since capturing Olympic silver in Sydney at 17, Khan won his first 18 pro fights at lightweight before suffering a shocking 54-second knockout loss to 15-to-1 underdog Breidis Prescott. Humbled, he linked up with Freddie Roach and resurrected himself at junior welterweight, outpointing Andreas Kotelnik for the WBA 140-pound championship in July 2009 and becoming the third-youngest Briton to win a world title. He's since made four defenses, including a unanimous-decision victory over hard-hitting Marcos Maidana in December 2010 that was named Fight of the Year by SI.com and the Boxing Writers Association of America.
Judah had already won five major title belts -- two at 140 pounds and three at 147 -- by the time Khan turned pro in 2005. He's been in against some of the sport's finest talents, including Kostya Tszyu, Floyd Mayweather Jr., Cory Spinks and Miguel Cotto, but he'd become known for his erratic behavior as much as his ability, suffering mystifying mental lapses in his biggest fights. Now 33, the born-again Christian is desperate to prove his best days aren't behind him, and he's shown a more mature outlook while making one last run at the top with recent Hall of Fame inductee Pernell Whitaker in his corner.
When Khan's proposed unifying bout with WBC and WBO light welterweight champion Timothy Bradley fell through, the Briton agreed to fight Judah after the two waged a war of words on Twitter. (The split heavily favors Khan, with Judah making 45 percent of the U.S. revenue and none of the British money despite bringing a title to the table.) Yes, Judah is a heavy underdog, having not beaten a world class fighter since edging Cory Spinks for the undisputed welterweight title in 2005 -- but he's the most talented opponent Khan has ever fought.