The full-back lashed out at supporters on Instagram who accused him of ignoring his club team-mate in favour of Barcelona forward Neymar
A lot of Real Madrid fans were unhappy when they saw defender Marcelo wishing happy birthday to Neymar but not to Cristiano Ronaldo.
The attackers share a birthday, but when Marcelo sent a message to his Brazil team-mate rather than his Real Madrid ones, fans were very unhappy.
Neymar lines out for Real's bitter rivals Barcelona, and supporters did not appreciate what they saw as the full-back snubbing their idol.
The Brazilian posted a photo of himself with Neymar, with the caption "Congratulations and many happy returns.