He entered the starting eleven surprisingly, but he remained on the bench in the match against Valencia. We are talking about Andriy Lunin, Real Madrid's goalkeeper, who has discomfort and wasn't wanted to be forced. His place was taken by the youth player Fran González, the third goalkeeper of the first team, who officially debuts with the 'seniors'.
The team didn't want to force Lunin, with Courtois's condition in doubt for the next match. We are in a moment of a heavy schedule load and where mistakes can't be made. After receiving Valencia, it's time to head to London to play against Arsenal.
The match against Arsenal corresponds to the Champions League quarter-finals. Risks don't want to be taken, and it has been decided to 'pamper' the Ukrainian so he can be available.
Andriy Lunin with his future in doubt: Four offers to leave Real Madrid
A few months ago, Lunin decided to renew his contract with Real Madrid, continuing until 2030. He preferred to stay and not wait until the end of his contract, trying to achieve the importance he believes he deserves.
So far, this hasn't changed and the Ukrainian's idea would be to leave the club this coming summer. He is tired of being the eternal substitute unless there is an injury. Also, he believes he deserves to be a starter in a top-level team.

Europe is aware that Andriy Lunin wants to leave Madrid, and he doesn't lack proposals. At the moment, up to four clubs are willing to take the international from Ukraine.
Two of them are in the Premier League, with both Chelsea and Manchester United interested in signing him. Andriy Lunin is very popular in England and considers it could be a good destination if he ends up leaving Real Madrid. Far from there, he has also sparked interest, as would be the case with Borussia Dortmund.
Finally, and this would depend on possible departures, there is Porto on the lookout. Andriy Lunin is liked there if Diogo Costa ends up leaving, offering him the keys to their goal.
Fran González: The youth player who debuted in the Real Madrid-Valencia
At 19 years old, Fran González has his first opportunity with Real Madrid. He is a goalkeeper in whom there are many hopes placed, having a lot of future ahead. He is almost 6 ft 7 in (2 meters) tall, and the confidence in the 'giant' from Castilla is total.

He has been Ancelotti's choice, having a lot of confidence in the giant from Castilla. Fran González has a lot of future ahead, and at the white club, they are delighted.