• Didier Drogba and Chelsea pose test for weakened back line • Jonny Evans likely to partner Nemanja Vidic in United defence It was May 2007 and Sir Alex Ferguson was toasting the first of his title wins against José Mourinho's Chelsea. His head, he admitted, was already a little fuzzy from the previous night but he had sent for another bottle of champagne and was drinking from a plastic cup when the conversation turned to the player who had been the biggest threat to Manchester United ...