Kaká has discussed countryman Neymar in an interview in the pair's native Brazil - offering the Barcelona ace some unusual, tongue-in-cheek advice.
"With everything that he's done at Barcelona, Neymar could well be next in line to be the best player in the world," Kaká told Record TV.
From Neymar to Reymar?
"But I think if he changed his name to 'Reymar', he'd have an even better chance.
Kaká also talks Sao Paulo, Brazil
The Orlando City player also touched on his future, leaving the door open for a return to Sao Paulo, reaffirming his continuing "love" for his former club.
The 34-year-old, who won the last of his 92 Brazil caps in May 2016, added: "My relationship with the national team has always been good.
"Now, at my age, it'd be a mutual agreement if it were good for me and the team."