Last night marked the end of Brock Lesnar's memorable UFC career.
The former heavyweight champion took on Strikeforce transplant Alistair Overeem, who stopped the wrestling powerhouse with first-round strikes.
After the bout's conclusion, Lesnar announced his retirement from the sport, much to the surprise of the fans and media alike.
Even though his career was relatively short, Lesnar has left behind a memorable legacy that will be remembered for a long time.
Arguably the most devastating loss of his career, Lesnar looked to be just a few steps behind "The Demolition Man," who looked to have the hulking heavyweight figured out early, peppering him with close-quartered knees.
After two minutes of knees to the body, Overeem found his opening and uncorked a kick to the midsection, which sent Lesnar to the canvas. A couple of short right hands to the head and body eventually yielded the TKO victory for Overeem, sending Lesnar into retirement.
Looking to defend the heavyweight title for a record third time, Lesnar took on then-top contender Cain Velasquez, an undefeated fighter who also hailed from a successful collegiate wrestling background.
Lesnar came out guns blazing early, leaping into the battle with a jumping knee and muscling the smaller Velasquez to the canvas. The AKA product remained calm, eventually working his way back to his feet where he stormed Lesnar with an array of punches.
Lesnar wilted to the canvas from the barrage of blows, grounding-and-pounding his way to victory, securing the first-round TKO win and the heavyweight belt in the process.
In his Octagon debut, Lesnar took on former heavyweight champion Frank Mir, setting the tone for his future battles under the UFC banner.
In the early goings of the bout, Lesnar rocked and dropped Mir early with some heavy right hands, dropping some short hammer fists to his downed opponent.
The end seemed imminent, though, an overzealous Lesnar left himself exposed, as Mir locked up a leg and searched for the submission.
The Brazilian jiu-jitsu black belt cinched up the kneebar, which yielded the first-round tapout for the resurgent fighter.
In his second outing with the UFC, Lesnar took on Pride veteran Heath Herring, a heavy-handed striker who can end any bout with one well-placed punch.
That punch never came, as Lesnar dictated the match early with a shot of his own, blasting a right hand to the face of Herring, which sent the fighter reeling backwards where he remained for the rest of the bout.
Lesnar out-wrestled and out-hustled Herring for three rounds, eventually taking the dominant decision victory, which set him up for a shot a the heavyweight title in the process.
After his initial UFC victory over Herring, Lesnar was then matched up with heavyweight champion Randy Couture.
Sporting a 2-1 record overall, many didn't believe that the inexperienced Lesnar could best the well-versed Couture, though, the former NCAA Division I wrestling champion soon proved his doubters wrong.
Lesnar dropped Couture in the second round with a long right hand, following the Las Vegas fighter to the canvas where a few ground-and-pound blows eventually yielded the TKO victory, allowing Lesnar to cinch the UFC heavyweight title in just his fourth bout as a professional.
Once Lesnar defeated Couture and Mir bested then-interim champion Antonio Rodrigo Nogueira, the duo were pitted in a highly-anticipated rematch in an effort to unify the organization's titles.
Though Mir submitted Lesnar in their first outing, that didn't stop the wrestling-savvy fighter to bring the fight to the canvas, where in the second round Lesnar unleashed a hellish barrage of strikes.
Lesnar trapped Mir's arm behind his back and proceeded to deliver a steady stream of heavy right hands. The bout was mercifully saved by referee Herb Dean, who ended the bout less than two minutes into the round, giving Lesnar the satisfaction of avenging an earlier career defeat and defending his title in the process.
Returning to the cage after his battle with diverticulitis, Lesnar took on a juggernaut heavy hitter in Shane Carwin upon his return.
The Greg Jackson fighter was undefeated and had finished all of his opponents inside of the first round, courtesy of his crushing knockout power.
Carwin had Lesnar in danger early, rocking him with a hard uppercut before sending him to the canvas with a barrage of strikes. Turtled up and on the mat, Lesnar managed to survive a heavy onslaught of ground-and-pound blows, making it to the second round.
Lesnar took advantage of a clearly fatigued Carwin, bringing the big man to the floor where he immediately applied an arm-triangle choke, which yielded the tap in the second round.