Allardyce is convinced the hugely-experienced player, who boasts an Olympic gold medal among his collection of honours from a career which saw Champions League success at Real Madrid and Barclays Premier League glory at Stamford Bridge, can bring a winning mentality with him to Tyneside.
He told his club´s official website: "We have signed a player who is a real winner and who has played on the biggest stages for both his clubs and his country."
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