Chile forward Alexis Sanchez says he has come to Barcelona "to learn from the best."
Barcelona's first major transfer of the offseason signed a five-year contract with the Spanish champions after passing a medical exam on Monday.
The 22-year-old says he wants to help Barca "do what it has been doing: win titles."
Sanchez recognizes it will be difficult to crack Barcelona's starting 11, saying "we all have to learn from Leo (Messi) and Xavi (Hernandez)."
Last week Barcelona acquired Sanchez from Italian club Udinese for â‚¬26 million ($37 million) with bonuses that could add an extra â‚¬11.5 million ($16.5 million) to the deal.
Barca hopes to also bring back Arsenal captain Cesc Fabregas before the summer's end.