Oleksandr Usyk enraged a superstar by outboxing him in sparring, according to a former world champion.
On July 19, the unified heavyweight title holder will return to the ring in an eagerly anticipated rematch against Daniel Dubois at Wembley Stadium in London, UK.
The Englishman has much improved since the first contest, with Peter Fury claiming Dubois will be ‘a different man’ against Usyk this time around. However, for many, the two-weight champion is far too good.
The 38-year-old has been nothing short of sensational throughout his time in boxing, making easy work of almost everyone who has set foot inside the ring with him, both under the lights and inside the confines of the gym.
WOW: Dubois vs Usyk winner set for new challenge, as two boxers to fight to become next challenger

Johnny Nelson says Oleksandr Usyk ‘bossed’ Wladimir Klitschko in sparring
Johnny Nelson once watched Oleksandr Usyk spar the great Wladimir Klitschko.
According to the ex-WBO cruiserweight champion, ‘Dr Steel Hammer’ struggled to deal with his countryman and eventually chucked him out of the gym.
In an interview with Behind the Gloves, Nelson said: “I rate Oleksandr Usyk.
“When I saw him sparring with Wladimir [Klitschko], preparing for Tyson Fury, he did one round and Wladimir slung him out, said, ‘Get out, not while the press are here.’ He was bossing Wladimir.”
Johnny Nelson says why Oleksandr Usyk stops Daniel Dubois again
Nelson is a massive fan of what Usyk brings to the ring.
Having watched the boxing genius up close, he knows exactly what the athlete is capable of.
With that in mind, the retired sportsman is very confident he knows what will happen in the phenom’s upcoming bout.
Interestingly, Nelson explained why Usyk finishes Dubois again.