Can Tite's men make it six in Russian Federation?
However, the Brazilian says the speculation is completely off the mark.
Neymar, 22, joined PSG for a world-record €222 million last summer from Barcelona - but only arrived at Camp Nou 12 months after Guardiola had left the club in 2012.
Neymar stated this while speaking with reporters, at his country's football federation headquarters in Rio d Janeiro.
"I feel good physically".
"Of course I'm adapting again, but nothing is too serious".
"I'm not yet at 100 percent". That will come with time. It is normal that I have this fear of making complete movements.
"So, every day we talk because I always go and challenge him and each day he is better, faster and it is more and more hard to block him. There's nothing that can stop me", he said.
The football team of Brazil will receive 1 million dollars in prize money in case of winning the world Cup in Russian Federation, reports Folha de S. Paulo.
Neymar still continues his rehabilitation after undergoing surgery on his fractured right foot in March.
The five-time world champions begin their Group E campaign against Switzerland on June 17.
He had been excused until Wednesday after playing in the Champions League final against Real Madrid on Saturday.
Brazil's football confederation spokesman Vinicius Rodrigues said coach Tite chose to give the three players more time to rest before they join the squad.