Derrick Lewis strips off shorts, moons crowd in St. Louis after KO win over Rodrigo Nascimento

Derrick Lewis has done it again. The celebration that came with his latest knockout, however, is an all-timer.

Lewis pulled off a massive knockout win to beat Rodrigo Nascimento in the third round of their fight at UFC St. Louis on Saturday night. And in true Lewis fashion, his shorts, and briefly his underwear, came off in the middle of the Octagon. Lewis hilariously flashed the crowd at the Enterprise Center during the celebration, and at one point he even took off his cup and chucked it into the crowd to apparently offer it up as a souvenir.

The cup was actually caught by someone in the crowd with access to the press conference with Dana White and Lewis. While White seemed hesitant to autograph it, Lewis apparently quickly obliged.

Lewis came out hot right away. He landed a huge head kick right out of the gate, and then he landed a solid takedown in the opening round. It wasn't until the third round, though, that he made his move.

Not even a minute into the round, Lewis delivered a perfect right-handed blow to Nascimento's head. That sent the 31-year-old Brazilian scrambling on his way down to the mat. The second he fell, it was on.

Lewis landed nearly two dozen more shots before the referee called it. Nascimento didn't stand a chance once he hit the ground, and the celebration in Missouri quickly took off.

It marked the 15th knockout of Lewis' UFC career, which is the most in the sport's history.

Nascimento, who entered Saturday on a three-fight win streak, now has an 11-2 overall record. The loss was his first since 2020.

Lewis now sits at 28-12 in his career. The 39-year-old entered the night having lost five of his last seven fights, and he hasn't won in back-to-back outings since early 2021.