The Ivory Coast midfielder signed a four-year deal on Tuesday and cost the Catalans nine million euros (£6million).
A statement on the club´s website, www.fcbarcelona.com, said: "The 24-year-old is now a new Barca player after passing a medical before travelling to the club´s offices where he put pen to paper on a deal that ties him to the Blaugrana until 2011."
© Copyright PA Sport Ltd 2007, All Rights Reserved.
Do YOU want to write for GiveMeSport? Get started today by signing-up and submitting an article HERE: http://gms.to/writeforgms