Former England goalkeeper Peter Shilton has admitted that he is concerned about the Three Lions' defence.
Roy Hodgson's men conceded their first goal of Euro 2016 qualifying in the 3-1 win against Slovenia at Wembley on Saturday.
However Shilton, who won 125 international caps, believes that England need more quality options at the back.
"I'm a bit disturbed with us at the back," he told the Derby Telegraph.
"We need another two or three solid defenders but, overall, I think we are on the right lines."
England face rivals Scotland in a friendly at Celtic Park on Tuesday evening.
