Barcelona full-back Dani Alves will have his work cut out should he decide to join Paris Saint-Germain, according to former Lyon and Brazil midfielder Juninho.
There has been strong speculation in both the French and Spanish press that Alves, who turns 31 next Tuesday, will move to Paris after the World Cup.
Juninho, who won seven Ligue 1 titles in a row with Lyon, said his fellow countryman would need to prepare for some extra physicality in France.
"Maybe he'll have another two or three seasons at a high level," the 39-year-old told RMC on Thursday. "I think he will have to dedicate himself a bit more physically for the next few seasons, especially if he joins PSG, because he's going to come across players who are a bit more physical."
Juninho, who retired in January, believes Barcelona could look to cash in on Alves this summer since his contract runs out in June 2015.
He added: "He's a player who likes to attack a lot but, for me, he has quite a few flaws defensively. The more the seasons pass, it will become a little bit more difficult.
"I don't know how many seasons he'll have left at the highest level and maybe Barca want to sell him now because it could be their last chance."
Francesc Aguilar, a journalist with Barcelona-based newspaper Mundo Deportivo, claimed earlier this week that Alves had already told PSG's Brazilian players -- Alex, Lucas, Marquinhos and Thiago Silva -- that he would be joining them at the club next season.
Dani Alves le ha confesado a sus amigos y compatriotas del PSG (Alex, T.Silva, Marquinhos y L.Moura) que el año próximo serán compañeros.- Francesc Aguilar (@MDpor_elmundo) April 30, 2014