Former boxer Floyd Mayweather has laughed off the prospect of fighting UFC star Conor McGregor for a second time. 

The two went head-to-head in August 2017, with Mayweather, regarded as one of the best boxers of all time, taking his professional record to 50-0 with a victory over McGregor, who was making his debut in the sport.

TMZ caught up with Mayweather and asked him about a second possible meeting with the Irishman, a prospect which members of the fighter's entourage laughed in unison at.

"Boy, boy, boy, boy, boy...these kids are some circus clowns," Money said. "They can't f--k with Money May. They gonna keep coming my way. At the end of the day, I keep laughing, I keep living, I keep going to the bank."

Mayweather was also asked how much money he would need to be paid to get back in the ring for a 51st time but was adamant he doesn't need the cash as things stand.

Here is a reminder of some of the standout moments from when McGregor and Mayweather went toe-to-toe in a historic contest:

Since that fight, Mayweather's action has been limited. The 42-year-old was last in action on December 31, when he dominated Tenshin Nasukawa in an exhibition match, winning inside the first round by TKO.

McGregor's next move has also been the source of some intrigue, as the Irishman has not been in the Octagon since he was well beaten by Khabib Nurmagomedov in October last year.

In addition, Money was also asked for his view on the upcoming showdown between his former rival Manny Pacquiao and Keith Thurman on July 20.

"Our team is behind all this, so I don't really want to speak about that," said the 42-year-old. "May the best man win." Mayweather beat Pacquiao via a unanimous points decision in May 2015.