Having retired this summer, Ferdinand certainly has some top class experience of playing in that position, so it is no surprise to see him so outspoken on who he feels to be the country's top prospects in the middle of the defence, something that is being discussed in the media after news of Chelsea's big money move for Everton's John Stones was released, as reported by BBC Sport.
And Ferdinand names Stones as one of those three best young defenders, alongside his former Manchester United teammate Michael Keane, now at Burnley, and Tottenham's Eric Dier, claiming all three are certain to be full internationals.
The best 3 young 21s CB's in England right now: 1. John Stones 2. Michael Keane 3. Eric Dier All future full England internationals 100%— Rio Ferdinand (@rioferdy5) July 18, 2015
What is particularly unusual about the Spurs man is that he was not picked in England Under-21's squad for the European Championship this summer, a tournament that ended in huge disappointment with Gareth Southgate's side finishing in last place in the Czech Republic.
Dier was dropped from the squad ahead of the competition despite having played more games for a top five side than any other central defender in the squad. In fact, no one else that made the squad played more games for a Premier League side than Dier last season, except his Spurs teammate Harry Kane.
While Stones is being talked of as £20-30 million pound player by publications like the Mail, Dier, just a few months older than the Everton man, could be argued to be just as impressive a prospect, both in terms of the transfer fee needed to recruit him and also what he can bring to White Hart Lane and the national team in the future.