If Barcelona has Lamine Yamal, I am actually waiting for Real Madrid with Guller. I am quite curious about his abilities, because looking at some videos he has a pretty good technique. But he was injured and has yet to make his official debut. Of course, Xavi must maintain the stability of the team. Xavi doesn't seem to want to rely on one player. So they have options in every player's position. So when there are players who are injured, they will not play badly.
The Turkish born attacking midfielder is a very talented player, I've seen some videos of him playing for his former club at Fenerbahçe and just like Lamine Yamal he's very talented and skillful and suits Realmadrid game plan very well, when i see him he reminds me of Ozil during his time at Realmadrid, also he's had impressive stats at his former club and really impressed Madrid scouts and I believe that's why Ancelotti couldn't think twice but to bring in the youngster that would last them for long term.
Too bad injury could let us see what he's made of, this season, but there's news that he's back into the training ground and we could see him in action in a Madrid shirt sooner, however the last time he played in a Madrid shirt was against Manchester United in pre-season friendlies though he didn't score or give an assist but his performance was great and he contributed to the teams success in winning the game.