Anthony Martial £36m price-tag does not faze me

Martial, 19, joined United from Monaco on Monday as he became the most expensive teenager in football's history.

After returning to the French national team's headquarters on Tuesday after a flying visit to Old Trafford, Martial said he cannot wait to get started.

"It was a restless night," he said in a video interview posted on the French Football Federation's website. "I'm very happy to sign for Manchester United. It's a very big club and I hope I'll be able to show all my qualities.

"There's certainly been a lot of talk about it [the transfer] but the most important thing will be on the pitch and to show people who I am.

"Football is football -- it's changed nothing. You have to stay true to yourself and keep your head on your shoulders."

French newspaper L'Equipe reported on Tuesday that, when bonuses are included, the deal for Martial could eventually be worth €80m, which would make him the most expensive French player in history.