Summary:
Wladimir Klitschko has pulled out of his world title fight against Bulgarian heavyweight Kubrat Pulev.

Full article:
Wladimir Klistchko has been forced to postpone next month's IBF world title fight with Kubrat Pulev after he tore bicep muscles in training. The 38-year-old Ukrainian world heavyweight champion - who is also the WBO, WBA and IBO title-holder - was preparing in Austria ahead of the fight with Pulev. Klitschko, who has won 62 of his 65 fights to date, said: 'I am very disappointed the fight will not go ahead. Out: Vladimir Klitschko has been forced to pull out of his bout with Kubrat Pulev with a torn bicep muscle . Preparation: Klitschko (right) talks to his coach Johnathan Banks during a training session ahead of the fight . 'I am in top form and had a great training camp.' The fight, which would due to take place in German city Hamburg on September 6, will now commence at the same venue at a later date this year. Bulgarian Pulev, 33, who became the IBF international champion in 2011, has a record of 11 knockouts from 20 victories. Postponed: Klitschko (left) has had to delay his fight with Bulgarian Pulev (right) after sustaining an injury . Gold: Ex-Olympic heavyweight champions Anthony Joshua (left) and Wladimir Klitschko (right) sparred together .