Turkey's Volkan Sen in action with England's Eric Dier
Sol Campbell has expressed his concerns about Eric Dier's suitability to start for England this summer, speaking to The Sun.
Dier is lined up for a midfield spot after a superb season for Tottenham Hotspur, making the switch in August after playing at centre-back and right-back in his debut campaign for the club in 2014/15.
His performances saw him called up to the England squad, and even score a late winner against Germany in a March friendly.
Eric Dier celebrates scoring the third goal for England
Campbell voiced his worry that Dier will not be able to provide adequate protection to the full-backs at Euro 2016 this summer.
He said his concerns were part tactical, for Roy Hodgson to consider, possibly putting another player alongside him rather than leaving him alone at the base of a diamond midfield formation.
The ex-Spurs, Arsenal, Portsmouth and Newcastle defender said: "They need to protect the centre backs and communicate with the back four to fill in in needs be, especially if a diamond is played and the full backs bomb on.
“I worry that Dier, for example, is not the sort of player to fill in and cover on the flanks, and if they are to succeed they have to treat it more as a back five or six, not a back four."
Former England defender Sol Campbell
England are not likely to utilise the same system Mauricio Pochettino implements at Tottenham, so there will naturally be some adjustment for Dier to make.
Yet group opponents Russia, Wales and Slovakia do not, Gareth Bale aside, possess fearsome attacks and Hodgson may elect to go with his previous plan of playing Dier at the base of the diamond and seeing how it goes in the opening three games.
Is Sol Campbell wrong on this one?
Campbell added that he did not believe Jack Wilshere should be picked for Euro 2016, urging Roy Hodgson to take Jordan Henderson in his place.