Renato Sanches has revealed that he chose to sign for Bayern Munich because they "put in a lot of effort" to sign him.

The 19-year-old agreed to join the Bundesliga giants before helping Portugal win the European Championships in the summer.

Sanches is said to have received a "firm offer" from Manchester United, but he opted to leave Benfica for Germany.

"I had a good feeling about it right away when I heard about Bayern Munich's interest," Sanches told Hertha Berlin's official website. "They really put in a lot of effort and I immediately got a feeling the people in charge believed in me as a player. That was the decisive factor behind my decision to join Bayern.

"[Carlo] Ancelotti always looks calm and in charge. You can just see he has a lot of experience. He is getting involved with his players a lot and is helping players to make individual progress.

"But I am also playing alongside a lot of world-class players here. I can learn from all of them, especially from the players who play in midfield like Arturo Vidal, Xabi Alonso and Thiago Alcantara."

Sanches spent one season in Benfica's senior team before making the move.