Rio Ferdinand and John Terry have given England manager Roy Hodgson a huge void to fill at centre-back The cupboard is bare for England and it would be a nonsense to suggest there are three or four candidates capable of stepping up to the plate. Most of them can't even get a game for their clubs at the moment, never mind England! Joleon Lescott looks like he might not get a new contract at Manchester City, Phil Jagielka is simply a very good club player at Everton and the people at Chelsea must have doubts about Gary Cahill if David Luiz is keeping him out of the team. Phil Jones and Chris Smalling haven't progressed as hoped at United, notwithstanding the injuries both have suffered, while Steven Caulker at Tottenham is another maybe. But Rio Ferdinand, with his 34th birthday approaching next month, is hardly the future and that reality was brutally exposed against Tottenham. Rio was once blessed with pace and, when he was at his best, was undoubtedly one of the best defenders in the world. But the injuries that have stalked him in recent seasons, particularly his back problem, have led to the situation where he now finds himself in real trouble if he progresses beyond the 18-yard line. If he was able to play every game defending the edge of the 18-yard box, as Chelsea did against Barcelona in the Nou Camp last season, Rio would be able to get the cigars out and play in cruise control. But he has to play a higher line for United because they are an attacking side and that means he is vulnerable whenever he comes up against somebody with pace. For Tottenham's second goal at the weekend, Gareth Bale breezed past Rio before scoring, but in fairness to Ferdinand, Bale is capable of doing that to anybody. Still, Bale would not have done that to a fit and flying Ferdinand five years ago. Of greater concern was the way Ferdinand was beaten by Jermain Defoe for Tottenham's third goal, when Rio showed the Spurs forward the line and allowed him to cut inside. If United sign a centre-half with the blinding pace that Ferdinand once possessed, then it would cover up his weaknesses, but I don't see that happening with Sir Alex Ferguson having the likes of Jones, Smalling and Nemanja Vidic in his ranks once they return from injury. Ferdinand's problems will not go away and the worry for United is that they cannot rely on any of their defenders at the moment. At full-back, Rafael still has a lot to learn, while Patrice Evra looks to be on his last legs, but the biggest issues are at centre-half. I don't recall any team in the Premier League era winning the title without having at least one centre-half who was magnificent. Vincent Kompany, Vidic and Terry have all ticked that box for their respective teams in recent seasons, but you can go back further to the likes of Sol Campbell, Jaap Stam, Tony Adams, Colin Hendry, Steve Bruce and Gary Pallister. Ferdinand was once in that bracket, but his injuries, and those that are also beginning to affect Vidic, have left United with real problems at the heart of their defence. And even though Hodgson will feel he has been proved right about Ferdinand, he will not take any satisfaction from the players he must now choose from to fill the void left by the former England captain.