(CNN) -- Brazilian international right-back Daniel Alves has completed his move from Sevilla to Barcelona on a four-year contract.
Alves parades in his new Barcelona shirt after completing his move from Sevilla on a four-year contract.
The Catalan giants have paid 29 million euros ($45.78 million) with a further six million ($9.47 million), dependent on appearances and results, for the 25-year-old.
"We have signed the best player in his position in the world. He is a full-back who likes to attack and offers a great all-round contribution," said Barca sports director Txiki Begiristain.
Alves was an outstanding figure at Sevilla in his five-and-a-half seasons there helping them to win two UEFA Cups, a King's Cup, a European Super Cup and a Spanish Super Cup, making him a target for a number of Europe's top clubs.
Alves said: "Barcelona want to return to be the side they were two years ago when they won a second consecutive Primera Liga title and the European Cup and I am honored they have come for me to form a part of this project."
The Brazilian is the club's fourth signing since they finished third in the league in May, to end their second consecutive season without silverware.
Barca sacked coach Frank Rijkaard in favor of former player Pep Guardiola, and they have moved swiftly to reinforce their defense primarily, landing center-backs Martin Caceres (Villarreal) and Gerard Pique (Manchester United) and defensive midfielder Seydou Keita, also from Sevilla.
However, Italian defender Gianluca Zambrotta, Portugal midfielder Deco and veteran Frenchman Lilian Thuram have all left the club, with Ronaldinho and Samuel Eto'o also expected to leave the Nou Camp.