Wladimir Klitschko has decided to retire from boxing, rendering a potential rematch with Anthony Joshua moot.

The Ukrainian was defeated by Joshua in a heavyweight blockbuster back in April and the Brit was eyeing another colossal bout in Las Vegas on November 11.

But the 41-year-old has decided to call time on his 21-year career, ending any talk of another showdown with AJ. (DailyMail)