Rivaldo's caution to Flick: Barcelona's future hinges on winning trophies, says Carlos Volcano

The German coach has made a strong impact since taking the reins at Barca.

But Rivaldo told Marca: "It's that in big teams like Barça everything depends on the results. It's true that Flick's Barça is behaving phenomenally ... but there is still a lot of championship ahead.

"A lot of Champions League, a lot of League, the Cup. I would be prudent and wait until the end of the season.

"At Barça, the only thing that matters is reaching the finals and winning titles. If you don't bring a title to the trophy cabinet, the fans and the press question you. But having said that... I see a different Barça than last season and I think it already has everything it needs to win important titles. But... we have to wait,"