Barcelona striker Luis Suarez has paid tribute to the performance of Philippe Coutinho in Saturday's 2-1 win over Real Sociedad at the Anoeta.

Sociedad took a 1-0 lead into the interval of the La Liga clash, with Aritz Elustondo sending the Basque outfit ahead in the 12th minute of the contest.

Suarez levelled the scores just past the hour, however, before Ousmane Dembele completed the turnaround in the 66th minute to ensure that Barcelona would make it four wins from four at the start of the new La Liga season.

Coutinho came off the bench at the interval having been left out of the starting XI, and Suarez has credited the Brazilian for playing a "decisive" role in Barcelona claiming all three points.

"The atmosphere was very hot, but we have to adapt to everything. We were able to overcome it and we have to remember that in matches like these, leagues are won," Suarez told reporters.

"We came back last season too and this win gives all of us confidence. The intention was always to have the ball and create space. In the second half, Coutinho did very well when he came on and he was decisive in the match. He changed it.

"We came back out with plenty of desire. We're all here to help the team and to return from the international break with a win is very good."

Barcelona are the early leaders in La Liga, with 12 points from four matches leaving them top of the division.