The Chile winger has been linked with Juventus in recent weeks.
"I am calm," he told La Vanguardia on Friday. "I am focused on the Champions League matches, I want to win and I want to fulfil my contract which ends in 2016.
"For me, Barca is an education as a club. This is a club that teaches you a lot, as a person and a player, a club that takes care of both and in which I hope to learn as much as I can and to push myself to the maximum."