Back in April 2013, Deontay Wilder ended 41-year old Audley Harrison's career with a first-round TKO knockout.
Wilder, who was on a 27 knockout streak from as many fights, looked the favourite as he squared up against the heavyweight Harrison, who had been struggling to get back onto the world stage for a while.
The former Olympian, who was also defeated by David Price October 2012 in just 82 seconds, was floored by Wilder in just 70 seconds after the Bronze Bomber started swinging with lefts and rights.
As you can see below, the two heavyweights started the clash tentatively, with neither particularly throwing many punches.
But as the round progressed, the Brit was slowly backed into the corner of the ring and Deontay Wilder initiated Harrison's downfall with a quick jab and connected with a strong right to the face.
As Harrison slipped down the ropes, Wilder continued to attack and almost tripped himself up with the force of his punches.
The referee stepped in and despite Harrison beating the count, the referee wisely decided he couldn't continue and stopped the fight, giving Wilder the 28th knockout victory of his career.
"I beat the count," Harrison said. "I was still in the fight, ready to fight." The referee, Terry O'Connor, thought otherwise, though.
So after 12 years of boxing, this proved to be Harrison's last appearance in the ring.
Meanwhile, Wilder has since kicked on to become the WBC world heavyweight champion and remains unbeaten.
He is set to face Bermane Stiverne next month after original opponent Luis Ortiz failed a drugs test.
Should he be successful and Anthony Joshua beat Kubrat Pulev in two weeks' time, a possible world heavyweight title unification clash looks on the cards for 2018.