The 26-year-old played a starring role at Anfield in his first appearance since February, coming off the bench to score a brilliant opening goal in Brazil's 2-0 win.
Afterwards, he was filmed by the Brazilian Football Confederation (CBF) swapping signed shirts with Madrid midfielder Modric, and it seemed he could not resist a cheeky hint at a transfer in the coming weeks.
As they wrote messages and exchanged jerseys in the tunnel after the match, Modric could be heard saying, "We're waiting for you," prompting a smile from Neymar.
Modric was later asked about the transfer rumours and, according to Globo, replied: "Let's see what happens!"
Neymar has also refused to be drawn on the Madrid speculation of late, with his focus locked on international matters ahead of World Cup 2018.
He told reporters when quizzed on the latest reports: "The focus is now on the Brazilian team.
"They are talking nonsense. It's not worth answering."
Despite Neymar's reluctance to be drawn on his links to the Blancos, Goal has revealed that the Brazilian is eager to find a way out of Paris this summer.
That suggests Modric may get his wish of playing alongside the former Barca man in the near future, with the Croatian doing his best to act as an agent in a mooted big-money deal.