Former champion Mike Tyson continues to tease boxing fans about a return to the ring by posting another training video on Instagram on Monday, claiming to be back.
The 53-year-old caught the attention of the boxing world last week when he posted a short video of a workout that showed he possesses plenty of the punching power and speed that allowed him to become the first heavyweight to hold the WBA, WBC and IBF titles.
Tyson said then he was considering a return to the ring for some exhibition bouts to raise money for charity.
According to reports potential opponents include former All Black Sonny Bill Williams, last year's Cronulla Sharks captain Paul Gallen and ex-AFL star Barry Hall.
NZ rugby great Williams, who dabbled in boxing, posts a 7-0-0 record while Gallen is 9-0-1 in the ring with his one draw coming against Hall in the ex-Sydney Swan's only professional fight.
More likely to take on 'Iron Mike' though would be Evander Holyfield, with whom Tyson engaged in several epic bouts during their professional careers.
The newest video showed Tyson growling through a workout hitting the pads in yet another display of the ferocious power that made him one of the sport's most feared punchers.
If Tyson, who retired after a loss to Kevin McBride in 2005, does return to the ring, he will be following in the footsteps of Floyd Mayweather Jr and Manny Pacquiao in coming out of retirement for an exhibition fight.
Tyson, who became the youngest heavyweight champion of all time when he defeated Trevor Berbick in 1986 aged 20, won 50 of his 58 professional fights before retiring.
