Barcelona president Laporta: Ibrahimovic is a maverick
The 55,000-plus crowd at the Nou Camp broke all records for Barca and Laporta said: "It's been an historic day and I want to thank every person who came for their support.
"Zlatan is a maverick and has healthy ambition to win. He also has a great talent, and of course the backing of Pep Guardiola, who had always expressed the desire to have him.
"He is one of the most important additions in the history of this club. But it was only achieved after complex negotiations, which were resolved thanks to the merits of the technical group of the club led by Txiki Beguiristain."