• Sam Allardyce bemoans disappointing end to weeks of negotiations • ‘We can’t get the right paperwork or the right clearance” Administrative difficulties have prevented West Ham from signing the France international Lassana Diarra. Diarra has been without a club since making an acrimonious departure from Lokomotiv Moscow in August and has not played in almost nine months. He reportedly refused to train for the Russian club after a disagreement with the manager, Leonid Kuchuk, and has recently been working…