The teen will join Real Madrid when he turns 18 in 2025.
Vini Jr, after victory over Chelsea in the Champions League, was asked by TNT if he had a message for Endrick.
He said, "Ah, yes. I saw him. I am very fond of him. I'm always supporting and cheering him on. I'm very happy about his title and the goal he scored in the final. People are waiting for him to arrive now.
"I try to do well in every game. I want to be physically fit for this important part of the season and I want to thank the club for all the help they are giving me.
"I arrived at the age of 18, now I've played more than 200 games for Real Madrid and in every game I try to do my best".