In his short career, he defeated a Hall of Famer, won the heavyweight championship and became the biggest pay-per-view (PPV) draw in the history of the company.
Four months later, he was back in WWE, F5ing John Cena out of nowhere and kicking off their rivalry which culminated in a terrific match at Extreme Rules.
Following Lesnar's loss to Cena that night, he attacked WWE COO Triple H. Snapping "The Game's" arm, he hasn't been seen since and his old mouthpiece Paul Heyman showed up at one point to announce his client's resignation and subsequent lawsuit against WWE.
Of course, in the world of professional wrestling, this is all a charade.
So when Lesnar showed up at last night's UFC 146 event and rumors began swirling the former champion was looking to get his old job back, it get me thinking.
Certainly, the two beatings he received at the hands of Cain Velasquez and Alistair Overeem haven't been forgotten and it's been less than half a year since his retirement. Call me crazy but I doubt Lesnar is aching to step back inside the Octagon.
So what's he doing at a UFC event?
Is this a case of Dana White and his company being used to further a WWE storyline?
According to Dave Meltzer, Lesnar's meeting with White did not go well. Perhaps the UFC President felt the biggest star in the sport was genuinely interested in making a comeback only to find out his appearance was all to help legitimize the storyline in which he quit WWE.
Meltzer also mentioned a "game is being played."
It's unclear what he means by that. Perhaps the aforementioned theory is true and Lesnar plus Vince McMahon is simply using the UFC.
Or maybe Dana White -- who has had meetings with McMahon in the past -- is helping an old friend with his new gig?
In a conversation on Twitter, my Cageside colleague Geno Mrosko said if anything which occurred last night in Las Vegas is mentioned tomorrow night on Raw, it will confirm everyone is playing their part in a well-orchestrated ruse.
Reality era, Cagesiders, gotta love it.