The naturalised Italian midfielder is set to play at the Nou Camp for the first time since he was sent off playing for Inter Milan in the 2010 semi final.
His presence will be useful for Paris St Germain, who are missing Blaise Matuidi.
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Since Guus Hiddink arrived at the helm, Chelsea have improved considerably after a tricky start to the campaign.
Newcastle United are staring down the barrel of relegation to the Championship for the second time in the past eight years.