Alex Song has completed his £15million move to Barcelona from Arsenal.
The Cameroon international successfully passed his medical at Barca earlier today and this afternoon put pen to paper on a five-year contract with the Primera Division giants.
Song, whose contract has a buy-out clause of €80m (£63million), will now join his new team-mates for the official team presentation of the Joan Gamper Trophy at the Nou Camp this evening, where the Catalan club face Sampdoria.
After passing his medical with flying colours, doctor Ricard Pruna said of Song: "His body fat percentage is extremely low and he has good muscle quality.
"I don't think he's had muscle injuries since he was 17, and that's really good news. He passed all the tests and he's available to the manager."
The 24-year-old becomes Barca's second major signing of the summer after the capture of Spain full-back Jordi Alba from Valencia and follows a well-worn path from Arsenal to the Nou Camp.
During Arsene Wenger's reign at the Gunners, Marc Overmars, Emmanuel Petit, Giovanni van Bronckhorst, Thierry Henry, Alexander Hleb and Cesc Fabregas have all made the switch to Barca.
