McGregor provided an ultra-rare insight into the business of the UFC as he posted a picture of his PPV bonus.
The Irishman returned to the famed Octagon following a hiatus from the sport in January 2021.
He headlined a huge card against Poirier on 'Fight Island' in Abu Dhabi, with the event garnering a massive 1.5 million PPV buys.
The 'Notorious' took to Twitter to upload an official document labelled 'PPV BUY SUMMARY FOR CONOR MCGREGOR'.
Per the image, UFC 257 collected 1,504,737 buys - 4,449 more than the projected buys of 1,500,238.
Of course, McGregor lost the rematch as he suffered a second round stoppage defeat.
But the receipt proves he is easily the biggest draw in the company.
McGregor also replied to a Twitter user saying he grossed the UFC over $100 million in one night.
He wrote: "A multitude of times, leading to a $4.2bn dollar acquisition of the company in 2016.
"Then I went a multitude more, perching the company up to an almost $11bn valuation, where it sits now in today's market. Incredible!"
A multitude of times, leading to a $4.2bn dollar acquisition of the company in 2016. Then I went a multitude more, perching the company up to an almost $11bn valuation, where it sits now in today's market. Incredible! https://t.co/IBQHn4ihHW- Conor McGregor (@TheNotoriousMMA) October 4, 2021
McGregor hasn't fought since losing the trilogy bout to Poirier last July.
He broke his leg at the end of the first round, losing a doctor's stoppage at UFC 264.
The 33-year-old is on the mend as he plots a UFC comeback next year.
As for Poirier, he's set to challenge UFC lightweight champion Charles Oliveira at UFC 269.
Chosen for YouChosen for You
Most Read StoriesMost Read