Alex Song has completed his transfer to Russian club Rubin Kazan.

The Cameroon midfielder has made his way to the Russian Premier League following the expiration of his contract with Barcelona and joins Kazan on a free transfer.

Former Arsenal star Song, 28, spent the past two seasons on loan with West Ham United after falling out of favour at Barca but will now be seen as a regular starter under ex-Malaga boss Javi Gracia.

An announcement on Rubin's official website confirmed the transfer but did not specify any details regarding the deal.