Martial has joined United for a fee believes to be £36million.
The young forward has signed a four-year contract with the option of another year.
Hear from @AnthonyMartial as he talks to #MUTV in his first United interview… #WelcomeMartial
https://t.co/xHQbteLK43
— Manchester United (@ManUtd) September 1, 2015
Martial told the club’s official website: “I am so excited to be joining Manchester United. I have enjoyed my time at AS Monaco and I would like to thank them and the fans for everything they have done for me.
“I have always wanted to play in the Premier League and to join the biggest club in the world is what every young footballer dreams of. I am looking forward to meeting my new team-mates and working with Louis van Gaal who has achieved so much in his career.”
Louis van Gaal added: “Anthony is a naturally talented, young, multi-functional forward with great potential. We have been watching him for a while now and he has developed immensely during his time at AS Monaco.
“I am delighted he has joined Manchester United as I believe this is the right club for him to continue his development as a young player. He has all the attributes to become a top football player; however we need to give him time to adjust to his new environment and the rhythm of the Premier League.”
