HE scored a dream goal against England but Andrew Robertson has revealed that his defensive nightmare stopped him sleeping after Tuesday's big game at Cetic Park.

The Scotland left back insisted he has already forgotten the superb strike that gave Gordon Strachan's side brief hope of staging a late comeback against the Auld Enemy.

The 20-year-old Hull City star felt he should have done more to stop Mark Oxlade-Chamberlain heading the English in front and was unhappy with the part he played in their second goal, scored by Wayne Rooney.

After the match, Robertson went to his family home on the south side of Glasgow and straight to bed but he admitted: "I did a lot of tossing and turning all night.

"I didn't even think about my goal, I was just doing a lot of thinking about my own defensive performance. It was disappointing.

"Probably a normal person would have been delighted to score their first goal for Scotland against England but I've already forgotten about it. I've been thinking about how I played. It's a bitter-sweet feeling.

"We lost 3-1 and that's the most annoying thing for me. I know I could have done better.

"First and foremost I'm a defender. If I could have swapped my goal for a clean sheet, I would have taken it."

Referring to Oxlade-Chamberlain's opener for England after 32 minutes, from a long Jack Wilshere cross that dropped between him and Scotland centre-half Grant Hanley, Robertson said: "I should have tried to tuck in and block him.It was a world-class ball from Wilshere and I don't know if I could have stopped it but I was next to Oxlade-Chamberlain and just let him go."

Robertson, 20, felt that he could also have done better at England's second, two minutes into the second half.

A mis-hit shot from Wilshere hit Robertson's foot and spun into the air for Rooney to head it past substitute keeper Craig Gordon.

Robertson said: "To lose a goal so early on in the second half was a sickener. I felt I was a bit unlucky. I didn't have much time to react but I had to get something on it because someone was behind me.

"The ball could hit me another 100 times and not fall right on to the head of a deadly finisher like Rooney.

"But I still felt I could have done better."

Robertson did admit feeling 120 seconds of elation after scoring in the 83rd minute when he buried an inch-perfect cutback from Johnny Russell past England keeper Fraser Forster.

He said: "Johnny did really well after he came on. When I played the ball to him he gave me a great return pass.

"I was delighted to see my shot hit the net. It was a proud moment for me and my family. For two minutes I enjoyed the thought that my goal was going to get us back into the game.

"But England went straight up the park and Rooney scored again."

Robertson was talking at his old primary school, St Joseph's in Clarkston, where he promoted Tesco Bank's Football Challenge for kids.