Paul, 27, is 11-1 with seven knockouts and has fought mostly as a cruiserweight, which has a 200-pound maximum at weigh-in. He is coming off a victory over Mike Tyson by unanimous decision – which did not impress Shields.

IBF world heavyweight champion Daniel Dubois hasn't ruled out the possibility of fighting Jake Paul one day after sliding into the YouTube star's DMs

IBF world heavyweight champion Daniel Dubois has addressed possibility of fighting Jake Paul after calling out the YouTuber-turner-boxing following his win over Mike Tyson

Oliver McCall, at the age of 59, has been defended for his decision to continue to fight, in contrast to the criticism Mike Tyson faced for his November bout with Jake Paul due to his age. Tyson, aged 58, went head-to-head with the 'Problem Child' at the ATandT Stadium in Arlington, Texas, on November 15.

Dynamite’ Daniel Dubois has revealed why he messaged Jake Paul with a fight offer in the wake of his win over ‘Iron’ Mike Tyson.

‘The Executioner’ – who made history in 2011 when a win over Jean Pascal for the light-heavyweight title made him the oldest world champion in the sport at 46 – told Fino Boxing that, should he face Paul, as soon as he was hit it would become ‘a real problem.’

UFC legend Don Frye has admitted he was left 'disgusted' by Jake Paul's showdown with Mike Tyson - and said the bout made him 'want to vomit'

Oliver McCall required just over five minutes to dispatch of Stacy Frazier via second-round TKO in Nashville, Tennessee, on November 19 - just four days after Mike Tyson's loss to Jake Paul

Paul (27) beat Tyson (58) via unanimous decision back in November, with many commenting after the bout that it was largely a money grab for the fighters, that it was a scam, and that the fight was fixed.