Anthony Joshua v Robert Helenius undercard with Filip Hrgovic, Campbell Hatton & Derek Chisora fights

Anthony Joshua has been handed a late replacement for his fight at the O2 Arena on Saturday night, with Robert Helenius stepping in to replace Dillian Whyte.

Whyte withdrew from the contest following a positive drugs test, leaving Helenius to step up at the last minute to face Joshua. This will have been a relief to event organisers, with an exciting undercard for fans to savour before the main event takes place.

The main fight on the undercard will be Filip Hrgovic against undefeated American Densey McKean, with the winner becoming the mandatory challenger to Oleksandr Usyk's IBF heavyweight title. Meanwhile, Derek Chisora will also return to the ring for the first time since defeat to Tyson Fury last December, facing Gerald Washington.

READ NEXT: Anthony Joshua's next opponent announced as Dillian Whyte replacement is found

Anthony Joshua will face Robert Helenius in a 12-round main event at The O2 in London this Saturday August 12, shown exclusively live worldwide on DAZN – with fans now able to view as part of their regular subscription. DAZN is the home of all the major fights from the boxing world and Saturday’s sold-out event will now be available to watch worldwide on the service.

£9.99 per month

Joshua outlined his desire to keep the event on despite Whyte's withdrawal, underlining his loyalty to Eddie Hearn and the Matchroom team. He said at Wednesday's press conference: "I looked at the undercard and I know how important it is for them to compete. I know how hard you (Eddie Hearn) worked, and all the Matchroom staff, my coach, DAZN, so it’s a responsibility I have.

"Late replacements aren’t ideal but it’s the third time it’s happened. A long career will present these types of obstacles and I’ve just got to