British boxing legend Amir Khan has given a word of warning to Anthony Joshua as he prepares to face Daniel Dubois at Wembley on September 21. Two of the heaviest-hitting heavyweights in boxing will touch gloves on Saturday when Joshua looks to become a three-time world champion by taking Dubois' IBF belt.

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Anthony Joshua vies to become a three-time heavyweight champion against Daniel Dubois on Saturday. Here's all you need to know ahead of the fight.

Interview: Joshua will challenge his fellow Briton at Wembley on Saturday, in a bid to become a three-time world heavyweight champion

Anthony Joshua fights Daniel Dubois this weekend in one of the biggest British heavyweight clashes in recent memory. Dubois' IBF title is up for grabs, and three more title fights populate the undercard.

Taking place at a sold out Wembley Stadium, Anthony Joshua will face IBF heavyweight champion Daniel Dubois in the first Riyadh Season event to take place in Britain. With both Joshua and Dubois on a career resurgence,

Daniel Dubois wants to make Anthony Joshua "quit" when they fight for the IBF heavyweight world title this weekend.