The Brazilian was in attendance at Sunday's prestigious Monaco Grand Prix alongside a host of stars including PSG teammates Marco Verratti and Gianluigi Donnarumma.
But unlike the Italian duo, Neymar skipped the club's title celebrations just hours earlier to make his way to the principality for the big race.
Neymar - who is currently recovering from ankle surgery - made a weekend of it on the Cote d'Azur watching Hamilton's attempts at glory.
But it was a tough day for the Brit who finished fourth after starting fifth on the grid behind eventual winner Max Verstappen.
Following the race, Hamilton took to Instagram with a video of him cycling past Neymar who was in the midst of media duties.
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After spotting the F1 star, Neymar calls out to get the attention of Hamilton but is completely ghosted by him.
Hamilton's focus was clearly elsewhere but Neymar took it all in good faith.
After coming across the footage, Hamilton tagged Neymar alongside the caption: "My bad bro" and two laughing emojis.
The post handed the PSG star a perfect opportunity to showcase his improving English skills when he replied: "F**k u" followed by a host of laughing emojis.
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Neymar may need to brush up further on his English as according to reports, the 31-year-old is set for a summer move to the Premier League with Manchester United interested in him.
PSG are looking to offload the former Barcelona star who joined the Ligue 1 side in 2017 for a world record £200million.
But injuries have blighted his time in the French capital with the forward having played just 52 percent of the club's fixtures.
That has led to a review of the PSG's transfer policy with president Nasser Al-Khelaifi warning the club's fans there would be no more 'bling bling' at the Parc des Princes, instead focusing on building a balanced squad capable of competing for the Champions League.
But Neymar's £600,000-a-week wages and a contract until 2027 may prove difficult to get around.