GERVONTA DAVIS appeared to slam Floyd Mayweather as "jealous" in a now-deleted tweet.
Mayweather announced his latest boxing comeback on the same day his fighter and opponent Rolando Romero held a press conference.
Both Davis, 27, and Romero, 26, are promoted by Mayweather, who will stage the May 28 fight.
But just hours after the lightweight rivals traded words on stage, Mayweather confirmed his upcoming ring return.
Appearing to comment on the timing, Davis tweeted: "Lol, n**** had a press conference today and fight on the same day.. no matter how much money you have you can still be jealous of a mf! Boy."
The American has been promoted by Mayweather since 2015 and guided to titles in three divisions.
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But the pair have bumped heads in the past and Davis recently claimed he only has one fight left on his current contract.
Responding, Mayweather told : "Nothing lasts forever. I will always love Tank. I like him. Love him – look at him as a son.
"He has to do what's best for him. I feel like I've done a great job thus far, building him and putting him in good fights, great fights.
"He's steady growing, he's steady learning. I'm proud of him."
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Mayweather will return to the ring in an eight-round exhibition two weeks before Davis fights Romero.
The American legend faces former sparring partner “Dangerous” Don Moore on May 14 on top of a hotel HELIPAD in Dubai.
The five-division world champion offically retired with a perfect 50-0 record in 2017 after beating UFC superstar Conor McGregor, 33.
But he has twice returned since, in exhibitions against kickboxer Tenshin Nasukawa, 23, and YouTuber Logan Paul, who weighed TWO STONE more.
This time, Mayweather, 45, will go over old ground by facing Moore, 42, who was once mentored by his uncle Roger.