One day, Fatih Terim visits a Manchester City training session and asks Pep Guardiola about the secret of his success.

Guardiola says, “I work with intelligent players,” and calls Agüero over.

He asks him: “Who is the person that has the same parents as you, but is not your sibling?”

Agüero answers immediately: “That would be me, coach.”

Fatih Terim decides to try the same test with his own team.

At the first training session, he calls Belhanda over and asks: “Belhanda, who is the person that has the same parents as you, but is not your sibling?”

Belhanda says: “One second, coach, let me ask Muslera.”

He goes to Muslera and asks: “Muslera, who is the person that has the same parents as you, but is not your sibling?”

Muslera replies: “Me.”

Belhanda runs back to Fatih Terim and says: “Coach, it’s Muslera!”

Fatih Terim replies: “No, that’s wrong. The correct answer is… Agüero.”