David Haye has enjoyed a successful 16 years as a professional boxer.
Winning world titles at both cruiserweight and heavyweight, Haye has also shared the ring with some of boxing's biggest stars, including Wladimir Klitschko and Tony Bellew.
Haye is now enjoying retirement, but that did not stop him from posting a video on X where he explained what it was like to spar with former WBC world heavyweight champion Deontay Wilder along with labelling him as the hardest puncher he has ever faced.
“Many years ago when Wilder was an up-and-coming prospect I sparred with him. By a mile, he is the biggest puncher I’ve been in the ring with and I can only judge that with big 16oz gloves on and the head guard," Haye said.
The former two-weight world champion also gave his thoughts on Wilder's fight against Joseph Parker on the "Day of Reckoning" card in Saudi Arabia.
“It’s a terrifying thought, taking those bone-crushing right hands, and his left hook is no joke. I believe there will be multiple knockdowns in this fight at the weekend,” Haye added.
You can watch the Day of Reckoning, featuring Anthony Joshua vs. Otto Wallin, Deontay Wilder vs. Joseph Parker and Daniel Dubois vs. Jarrell Miller, on DAZN PPV on Saturday, December 23. Click here for more details.