Gareth Southgate has warned Thomas Tuchel that playing Mason Mount and Conor Gallagher together could leave Chelsea "vulnerable."
The Three Lions boss played the two midfielders together during Saturday's 2-1 victory over Switzerland and admitted that his decision in the friendly match contained an element of risk.
Southgate suggested that the Blues could well find themselves in that predicament next season when Gallagher, who put in a shining display at Wembley, returns from his loan at Crystal Palace due to both being attack-minded players.