Saul was outstanding at Wembley on Saturday.
And Nacho said at the final whistle: "What is a shame is that he defends the colors of Atlético Madrid, but he has long shown that he is a very great player.
"He is still young and he showed Wembley tonight how good he can be with a full match and a goal.
"All that happens from him is good for the national team. I'm very happy for him."