Barcelona fullback Jordi Alba hailed goalkeeper Marc-Andre Ter Stegen for victory at Real Sociedad.
Ousmane Dembele and Luis Suarez scored after halftime to arrest La Real's 1-0 lead.
Ter Stegen was crucial in maintaining the scoreline and Alba stated: "We went out to attack in the second have and we had pros and cons.
"Our goalkeeper was perfect and, for me, he is the best in the world."
He added: "Our objectives are everything, the Champions League, LaLiga Santander and the cup.
"We have just started and we are always trying to improve."