Savinho was superb in the 4-2 win.
Michel said: "He is very good, he has a mentality of work and wanting to improve...
"They ask him if Raphinha is better or you, and he said Raphinha, because he is in Barça and in the national team. He has a very well-equipped head.
"We want him to stay here for a long time, he is growing a lot."