Wladimir Klitschko retires after turning down Anthony Joshua rematch

Wladimir Klitschko has retired from boxing after opting not to fight Anthony Joshua in a heavyweight world title clash in Las Vegas.

Klitschko had been deliberating over whether to take on Joshua for a second time this year, with a fight provisionally agreed for Nov 11 at the T-Mobile Arena.

But he has decided not to pursue the rematch and will instead quit the sport with immediate effect.