The midfield maestro earned plaudits at home and abroad for a stunning campaign last season and was one of the main driving forces behind Barca's treble-winning push.

However, Iniesta, who is also a key member of the Spain side, believes the Barca fans have not seen the best of him yet.

"I think that everything can be surpassed," he told Catalan radio station RAC1.

"This year I lost two or three months in total because of injuries.

"I am 25 years old, I like how I am at the moment and I think the best is still to come."

Arch rivals Real Madrid have already splashed out over 200million euros on Cristiano Ronaldo, Kaka, Karim Benzema and Raul Albiol as they look to build a squad capable of challenging Pep Guardiola's men.

Things have been much quieter at the Nou Camp where Maxwell is set to become Barca's first summer signing tomorrow.

However, Iniesta is unperturbed by the lack of reinforcements.

"People should continue having confidence in the team," he said.

"There is still time left in the transfer market and I assume the club is working on it.

"But I think that there are players of a very high level in the team at the moment and I don't think we have to be jealous of anyone.

"(Kaka and Ronaldo) are players of a very high level.

"We have to see how they get on but we shouldn't forget that we have to look at ourselves and no-one else.

"We have shown that when Barca is good we don't have to pay attention to the rest."