WBA and IBF world heavyweight champion Anthony Joshua has threatened to freeze out Deontay Wilder unless the WBC title holder stops “hooting and hollering” about a future bout.
Their promotional teams met in late 2017, but the American’s manager Shelly Finkel has said Joshua’s promoter Eddie Hearn has not been in touch this year.
Briton Joshua, 28, faces WBO champion Joseph Parker in Cardiff on 31 March.
Joshua – undefeated in 20 bouts – could hold three of the four recognised titles if he overcomes New Zealand’s Parker, who has 24 wins from 24 fights.
His promoter Hearn says he is “nervous” for what he calls the “toughest” fight of the Briton’s fast-moving career.
And, after conducting skipping, shadow boxing, pad work and some neck-strengthening exercises for the cameras at an open workout on Wednesday, Joshua said that he hopes to improve his weight management leading up to the Parker fight, at the Principality Stadium.
He weighed a career-high 18st 2lbs when defeating Carlos Takam in October.