IBF, WBA and WBO champion Anthony Joshua called out British rival Tyson Fury on Skysports saying "come fight me if you really want to say you're No.1, come fight me.
Tyson Fury won the WBC title from Deontay Wilder in February and Joshua beat Andy Ruiz Jr in December to reclaimed the IBF, WBA and WBO titles.
Jushua told Skysports ; There will only be one heavyweight undisputed Champion in boxing world - I have other belts that he doesn't have and he has want I don't have so it is common sense.
Tyson Fury will challenge Wilder for the third time in October, while Joshua will defend his titles against mandatory challenger Bulgarian Kubrat Pulev.
Joshua insisted that the current World Lockdown to prevent the spread of Coronavirus has enable him recount his success and failure so far.
Joshua v Tyson is speculated to take place on February 2021.
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