The Peruvian has won league titles in each of the last six years - two with Alianza Lima and four in a row with PSV Eindhoven.
And he told Bild newspaper: "We know what we can do and we are going to attack. Schalke have got to think about titles."
Copyright (c) PA Sport 2008, All Rights Reserved.
Do YOU want to write for GiveMeSport? Get started today by signing-up and submitting an article HERE: https://www.givemesport.com/writeforgms