WATCH: Anthony Joshua trains in world's highest boxing ring

World heavyweight champion Anthony Joshua takes his training to new levels on top of the Burj Al Arab in Dubai

World champion Anthony Joshua has taken his training to new levels as he looks to unify the heavyweight division in 2018.

Joshua followed in the footsteps of Tiger Woods, Rory McIlroy and Roger Federer, showcasing his skills on top of the Burj Al Arab in Dubai on Wednesday.

But while Woods and McIlroy struck tee shots from the roof of the luxury hotel, 'AJ' worked out in the world's highest boxing ring.

The 28-year-old from Watford holds the IBF, WBA and IBO belts and has been called out by fellow world champions Deontay Wilder and Joseph Parker after beating Carlos Takam at the Principality Stadium in Cardiff last month.

Parker, who holds the WBO belt, wants to fight Joshua early next year but his camp say they won't accept less than 35 per cent of the purse.

At a press conference in New Zealand on Tuesday they released footage of knockdowns Joshua suffered in his amateur days and offered £20,000 to anyone who can prove that Parker has been floored in his career.

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Click on the video above to see world heavyweight champion Anthony Joshua in action as he trains at 321m above ground

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