*Billboard.com is reporting that Sean “Diddy” Combs is suddenly co-managing the careers of Miami MC Rick Ross and Lil Wayne protégé Nicki Minaj.

The Minaj move is said to be in the wake of the rapper firing her previous manager Debbie Antney, who also managed Gucci Mane and is the mother of up-and-coming rapper Waka Flocka Flame.

Two days after Minaj dropped out of Rihanna’s “Last Girl on Earth Tour,” Antney released a statement confirming Minaj had given her the pink slip.

“I received a letter, which was [a] suspension. The next letter that came in was a cease and desist in doing all business with Nicki Minaj from Nicki’s attorney,” Antney explained in the letter. “I love Nicki. I wish her the most success. It’s not about the music, she’s like one of my children… I wish her no harm, only much success.”

Nicki Minaj with Diddy's son Justin Combs at his recent Sweet 16 bash in NYC

While hip-hop bloggers have speculated the firing was due to mismanagement on Antney’s part which consequently caused Minaj to drop out of the tour, Antney revealed to Billboard.com almost a month ago — before the tour was announced — that she no longer was working with Minaj.

“I’m not gonna sit here and drop a bunch of bombs on her now, even though she really, really disappointed me. Now Nicki did fire me. She did,” Antney said.

According to Billboard’s source, Minaj subsequently tried to hire Lady Gaga’s manager Troy Carter.

“Although some websites claim to have confirmed that Carter is co-managing Minaj with Diddy, our source says it isn’t the case and that Gaga pumped the breaks on the deal, threatening to find another manager if Carter took on Minaj as well,” wrote Billboard’s Mariel Concepcion. “When that happened, Carter stepped back and Diddy stepped in, asking one of his own managers, James Cruz, to co-manage Minaj with him instead.”

Meanwhile, Diddy and Rick Ross have been appearing together often lately, including on the remix to Waka Flocka’s “O Lets Do It” track. Diddy has also praised Ross’ rapping skills in public as of late, comparing him to the late Notorious B.I.G.

“Big shout out to my brother Diddy. We have a big announcement to make real soon, so stay tuned for that,” Ross said in a radio interview with New York’s Power 105.1 DJ Envy earlier this week.

Ross is also rumored to be extensively contributing to the writing of Diddy’s upcoming album.