Tyson Fury put Rugby World Cup winner Sonny Bill Williams through his paces with a test hill run.
The WBC Heavyweight Champion continues his preparations ahead of plans to return to the ring on March 26.
He doesn’t have any rivals yet, with the WBC mandated not to accept a 20 percent share of Dillian White’s purse.
Fury and Williams were accompanied by fellow heavyweight Joseph Parker, who himself awaits a title shot.
Parker defeated Derek Chisora for the second time in his rematch, and is a former WBO belt-holder.
Williams, who played 58 times for the New Zealand Rugby Union between 2010 and 2019, is now a pro boxer.
He has fought eight times, winning all three by knockout.
The 36-year-old is back in the ring on 23 March when he fights Barry Hall in Sydney.
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Fury looks forward to fighting at Old Trafford to secure his ‘Hero Homecoming’.
He added: “Fighting at Old Trafford has always been my dream.”
There has also been talk of Fury Fighting White in Cardiff for the full British showdown.
Alternatively, Fury could fight Andy Ruiz Jr. in the USA.
The heavyweight world champion hasn’t fought in the UK since his bout with Francesco Pianetta in 2018, having fought Deontay Wilder twice in Las Vegas and once in Los Angeles.