The anticipated switch to a back three means Walker and Ryan Bertrand are expected to operate as England’s wing backs with Jake Livermore partnering Eric Dier, who has spent most of the season in defence, in midfield.
With Harry Kane injured with ankle ligament damage and Wayne Rooney not in the squad, Jamie Vardy is expected to spearhead the attack against Germany, with Adam Lallana and Dele Alli either side of him.
Alli has been in outstanding form for Spurs in recent months, albeit in a deeper role, scoring 17 goals and supplying eight assists in 39 matches in all competitions.