Only time will tell whether Conor McGregor is the same fighter he was when he tore through the UFC at his peak.
But the Irishman’s demeanour outside the cage has certainly mellowed over the years.
His rage reached a damaging crescendo in 2018 when he ranted and raved before his grudge fight against Khabib Nurmagomedov.
But since he was choked out in the fourth round by his bitter rival, McGregor has put the brakes on insulting his opponents.
The build-up to his 40-second demolition of Donald Cerrone was boring in comparison.
And the former two-weight champion has resisted the urge to stick the boot in to Dustin Poirier ahead of their clash this weekend.
Indeed, when the two lightweights floated the idea of a rematch late last year, the negotiations were incredibly cordial.
The pair initially planned to hold a boxing exhibition bout which McGregor wanted to use as a warm-up for his proposed fight against Manny Pacquiao.
But the UFC indicated they would not sanction such an event and instead McGregor suggested the fight in November or December last year in the UFC.
That too was not possible and instead they will touch gloves at UFC 257 in Abu Dhabi on Sunday.
And whatever the result, McGregor will donate $500,000 (£370,000) from his sizeable purse to Poirier’s charity The Good Fight Foundation.
Poirier has already earmarked the donation to be used to open a boxing and mixed martial arts academy in Lafayette in Florida and he confirmed this week: “I don’t want to seem like we are up here giving each other back massages but I just wanted to clear the air.
“Conor’s team, McGregor Sports Entertainment did reach out to my foundation and they are starting the donation to the good fight foundation and we have huge plans for that.
“So Conor, man to man, you are going to help a lot of people with that.”
McGregor will not be the first of Poirier’s opponents to help out after Max Holloway signed his fight gloves following their fight in 2018.
Poirier auctioned the kit to raise money for a playground which is accessible for children with disabilities.
He has also used funds raised to build water wells at an orphanage and school in Uganda and to supply backpacks for more than 500 children.