Manchester United boss Sir Alex Ferguson is delighted to have a settled back four as they chase the Premiership and Champions League titles.

Now Rio Ferdinand has revealed the full extent of the back injury that kept him out for three months - and from which he has now fully recovered - and, for the first time in four meetings with Liverpool, Nemanja Vidic managed to avoid a red card, Ferguson can look forward with confidence.

"We have a very experienced back four, a very experienced goalkeeper and that gives us a real outstanding chance, albeit with seven difficult matches - but we have all got difficult matches, so what does it matter?

"No-one is going away. We are all knocking on doors.

"If you look at the run-ins for the teams, it could very well go to the wire."