Floyd Mayweather made a rather strange comment in his latest attempt to intimidate Mikuru Asakura.

The boxing legend sent the Japanese MMA fighter a bizarre threat while speaking to the media after announcing their exhibition bout.

Mayweather, 45, will face Asakura, 30, in an exhibition match as part of the card for RIZIN 38 at Saitama Super Arena in Japan on September 8.

The pair confirmed the news at a press conference in Hawaii on Tuesday night.

ALL THE INFO: Floyd Mayweather vs Mikuru Asakura: Date, Start Time, Tickets, How to Watch and more

And Mayweather raised a few eyebrows after he warned Asakura that 'his stomach is going to swell up like an eggplant' with a weird reference to the funny-shaped vegetable.

“Until you make money like I do stop talking," he said at the press conference.

“Stop wearing dorky clothes and start wearing the TMT clothes which are much cooler than yours.

Floyd Mayweather takes on Mikuru Asakura on September 25

“I know it’s just an exhibition match but with a single punch I can guarantee you that his stomach is going to swell up like an eggplant.

“[Our punches] are as different as a jet plane and a fly, so I look forward to having a match against him.”

Referring to himself in the third person, Mayweather admitted that he doesn't take the sport as seriously as he used to during his professional career.

But that doesn't mean that he's completely taking him lightly either as he revealed that he is still keeping himself in tip top shape.

“We don’t train as much when we were competing," he added.

READ MORE: Floyd Mayweather's bodyguard shoves RIZIN MMA star Mikuru Asakura during intense faceoff

“When we were competing we were competing against the biggest and best in the sport of boxing.

"So now we doing a little — we may train a few days and let the body rest a few days, train a few days, rest a few days.

"We don’t really train too much. We just travel and enjoy life. As far as boxing and competing at the highest level I did it for so long.

"When it’s time to go out there and do what I gotta do, I got that on lock.”

Former five-weight world champion Mayweather is gearing up to return to the ring for the second time this year when he takes on Asakura in a few weeks' time.

And there is also the exciting bantamweight matchup between Kyoji Horiguchi and Yuto Hokamura.