Amir Khan (left) is confident ahead of his challenge for Andreas Kotelnik's WBA light-welterweight crown at the MEN Arena in Manchester
Renowned American trainer Freddie Roach believes he has ironed out the flaws in the Bolton fighter's style as he challenges for a world crown in his 22nd professional fight
Khan's confidence seems justified as he gets off to a strong start against the well-respected Ukrainian
Defending champion Kotelnik, 31, lands a decent right hand on Khan's suspect chin, but the 22-year-old passes the test
Khan's superior speed and movement keep him out of danger, and he soon builds up a healthy lead on points over his opponent
Khan keeps up his good work as the contest enters its latter stages, with Kotelnik unable to tag him for the knockout he knows he needs to keep his belt
Khan is exultant as he secures a unanimous verdict, with the judges scoring the fight 120-108 and 118-111 twice in the Briton's favour
Former featherweight world champion Prince Naseem Hamed is at ringside in Manchester to offer Khan his congratulations
Khan kisses his WBA light-welterweight belt after becoming the third-youngest British world champion since the Second World War, after Hamed and Herbie Hide
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