Manchester United defender Luke Shaw's right leg nearly had to be amputated following an injury that saw him consider quitting football.

Shaw could this week make his first England start since facing Switzerland in September 2015, a week before his double leg break in a Champions League match at PSV Eindhoven.

"I nearly lost my leg," Shaw said on Tuesday. "I never knew that until six months later when the doctor told me.

"At the time, they were thinking about flying me back (from the Netherlands) and if I'd have flown back, I would probably have lost my leg because of the blood clots and stuff in the leg."

Shaw revealed details of his injury in depth for the first time while on England duty ahead of the team's UEFA Nations League opener against Spain on Saturday.

"I've got — I don't want to talk about it too much — two scars down the side of my leg where they had to cut it open and pull them out because of how severe it was," Shaw said. "But I don't really care about that anymore. I feel really strong and my right leg is exactly as it was before my leg break."

Shaw is driven to succeed having won over Manchester United manager Jose Mourinho and earned an England recall.

It leaves the 23-year-old left back grateful to those who supported him through the dark times, including the psychologist he has seen since the injury.

"I'd be lying if I said I didn't sometimes think about stopping playing football," Shaw said. "But I had a lot of good people around me, a lot of good friends and family. They helped me through it. But this is what I want to be doing. I want to be playing in the biggest games possible, I want to be winning trophies, I want to be doing this kind of stuff.

"That's my motivation and I want to one day be recognised as one of the best fullbacks in the world."