No funds shall be left behind for Floyd “Money” Mayweather Jr.

The Fighter of the Decade is officially throwing his name in the hat of being the latest all-time great fighter to entertain the idea of exhibition matches.

The 43-year-old Mayweather Jr. still insists that he’s retired from boxing, but when it comes to exhibition matches, and even sanctioned fights with UFC fighters, he wants to be the pound-for-pound king of practice paired with premium paydays.

“Oh, yes, absolutely,’’ Mayweather Jr. told USA Today in regard to him participating in a future exhibition match. “There are so many people that are in the work world that retire and still do different things and make a couple of dollars just to have fun. Same thing I’m doing. I’m having fun, enjoying life. Why can’t I do some sparring for, you know, some heavy cash?"

Mayweather virtually joined a news conference Monday and declaring he will be taking on a still-to-be-determined opponent in a boxing exhibition Feb. 28 in Japan's Tokyo Dome as part of combat sports event billed as “MEGA 2021.”

The capacity or platform of which Mayweather Jr. (50-0, 27 KOs) will engage in future exhibitions remains to be seen.

A year after toying with Conor McGregor and finishing with a 10th round TKO, Mayweather Jr. took RIZIN kickboxer Tenshin Nasukawa to the cleaners in 139 seconds on Dec. 31 2018, and rang in the new year with the easiest $9 million payday of his life.

Mayweather Jr. has since continued conversations with RIZIN this year on future collaborations and is still in a yet-to-be-announced boxing partnership with UFC president Dana White, who emphasized during UFC 254 that Zuffa Boxing is now imminent.

“Me and Dana talk,’’ he said. “I wouldn’t say always, but we’ll text and talk on the phone every once in a while. Dana’s a cool guy, he’s a great guy. And he’s doing a helluva job with the UFC and I’m proud of him. And we look forward to working with each other in the future. Are we going to work? Absolutely."

Mayweather Jr. also offered his input on the Mike Tyson versus Roy Jones Jr. exhibition match on Nov. 28 on Triller PPV.

"Let them do what they want to do, you know?’’ Mayweather said. “I can’t tell nobody what to do and what not to do. Because when I do my exhibition, I don’t want anybody telling me what to do and what not to do. And I don’t want anybody telling me, ‘Ah, Floyd needs money,’ I’m OK, I'm great, I’m doing just fine ... I got probably $1.3 million [in cash right now] on me. I’m Floyd 'Money' Mayweather."

Manouk Akopyan is a sports journalist and member of the Boxing Writers Assn. of America since 2011. He has written for the likes of the LA Times, Guardian, USA Today, Philadelphia Inquirer, Men’s Health and He can be reached on Twitter, Instagram, LinkedIn and YouTube at @ManoukAkopyan or via email at manouk[dot]akopyan[at]