Former All Blacks midfielder Sonny Bill Wlliams would be honored to share the ring with former undisputed heavyweight champion Mike Tyson.

In a recent interview, Tyson revealed that he was in training and seriously considering the possibility of returning to the ring to take part in a few exhibition fights to raise money for charity.

Australian boxing promoter Brian Amatruda has already been in touch with Tyson's team, floating a seven figure offer to have Tyson face Williams, Paul Gallen or Barry Hall in an exhibition fight.

Tyson, 53-years-old, has been out of the ring since he retired back in 2005 after getting stopped by Kevin McBride.

Tyson took to social media to deny that he was considering the possibility of facing Williams - but then Tyson deleted the post that contained his denial.

Williams, 35-years-old, has been out of the ring since 2015, with a 7-0 record with 3 knockouts. He defeated veterans like Frans Botha in 2013.

"I grew up watching Tyson and his fights," said Williams to the Sydney Morning Herald. "It's hard not to admire the power and ferocity of Tyson like so many other sports people around the world.

"It would be a humbling and surreal moment in my life to stare at him and know I was facing one of the greats of the sport. It would be an honour... a career highlight to share the ring with an iconic figure of world sport.

"If it's for a good cause, I'd love to get in the ring with Mike Tyson."

Gallen also said that he would be very interested in facing Tyson.

"I know who Brian Amatruda is - he's a reputable promoter. But I haven't spoken to Brian Amatruda myself, and to think that Mike Tyson's going to come to Australia and fight for $1 million I think is a bit far-fetched," Gallen told Wide World of Sports.