Nobody wants to mess with the undefeated boxer, Floyd Mayweather Jr. Apparently, he made it clear via an Instagram post that people (T.I. and Iggy Azalea) should not mess with his good friend, rapper Nicki Minaj.

"She is the best female rapper in the game. If somebody's got a problem with Nicki, they got a problem with me," wrote Floyd next to a photo of Nicki and him at BET Awards 2014.

This post might be directed to rapper T.I., and Iggy Azalea. T.I. and Floyd got into a brawl because of the rapper's wife Tameka "Tiny" Harris.

The boxer talked to NecoleBitchie.com about the whole incident.

"Tiny is married. I respect that. I don't care if y'all separated, she's still married under God's eyes and the law," said Floyd.

"I'm not going to sleep with a married woman. I'm not going to do that. Like I said on All Access, I'm becoming a better person," added the undisputed champion.

Coming back to Nicki Minaj, reportedly she dissed fellow nominee Iggy while accepting the Best Female Hip-Hop Artist award.

"No, no, no shade. No, no, no shade. I used to sit in the studio with [Lil Wayne] and I would literally take sometimes three, four days to write a verse. And he was like, 'No, you can't be taking days to write no verse, you gotta write your verse right here in the studio.' And that's why I love him 'til this day. Because he pushed me to push my pen, and I'm still one of the only emcees that's out here spitting metaphors and making you think. And I really don't even care if I get my credit or if I don't. I don't look at myself as a female rapper, because I know what I do. And I thank my fans because they...They might cut me off. This is so big. At one time black people was getting blacked out on the TV now they own their own network. This is big. This is different," said the rapper (via E! Online).

What do you think about this new alleged Instagram war between Floyd Mayweather and T.I.?

WBC welterweight champion Floyd Mayweather Jr. of the U.S. poses on the scale during an official weigh-in at the MGM Grand Garden Arena in Las Vegas, Nevada, May 2, 2014. Mayweather faces WBA welterweight champion Marcos Maidana of Argentina in a WBCWBA
1. Floyd Mayweather$105 Million REUTERS/Steve Marcus
Nicki Minaj performs a medley of songs during the 2014 BET Awards in Los Angeles, California June 29, 2014. REUTERSMario Anzuoni
Nicki Minaj performs a medley of songs during the 2014 BET Awards in Los Angeles, California June 29, 2014. REUTERS/Mario Anzuoni REUTERS/Mario Anzuoni
Nicki Minaj performs quotPills N Potionsquot during the 2014 BET Awards in Los Angeles, California June 29, 2014. REUTERSMario Anzuoni
Nicki Minaj performs "Pills N Potions" during the 2014 BET Awards in Los Angeles, California June 29, 2014. REUTERS/Mario Anzuoni REUTERS/Mario Anzuoni
Nicki Minaj Accepts the Award for Best Female Hip Hop Artist During the 2014 BET Awards in Los Angeles
Nicki Minaj accepts the award for best female hip hop artist during the 2014 BET Awards in Los Angeles, California June 29, 2014. REUTERS