Paris Saint-Germain's Neymar shone on his first appearance after a lengthy injury layoff by breaking the deadlock in his side's 2-0 win over Croatia at Anfield, skipping past two defenders before smashing in off the underside of the bar.
Neymar, who joined PSG in a record €222 million (A$341 million) move from Real's arch-rivals Barcelona, was filmed exchanging and signing shirts with Modric after the game in a video posted on Twitter by the Brazilian football federation.
Amid growing speculation the PSG forward will walk out on the Ligue 1 champions for Real, Modric can be seen saying to Neymar "We're waiting for you", prompting Neymar to laugh and smile.
Spanish newspaper Marca reported last month that the player’s father and agent, Neymar Sr., had told PSG his son wanted to leave immediately, saying he met Real directors in Paris in December.
Real president Florentino Perez has admitted his side tried to sign Neymar before he joined Barca in 2013 and has reiterated his desire to bring the Brazilian to the Spanish capital.
Neymar scored 28 goals and provided 16 assists in 30 appearances in all competitions in his first season for PSG before sustaining an ankle and foot injury in February.