The Daily Mail reports that the new deal will see the 21-year-old striker earn £75,000-a-week at Old Trafford.
The youngster made 30 appearances and scored nine goals for United in the Premier League last season.
Welbeck also featured for England at Euro 2012 this summer.
What is your opinion? Feel free to discuss the article under. You have to comment by using your Facebook profile. Be fair and have respect for other people and opinions!
Being an amiable guy is good for you and Jurgen Klopp is living proof.
Summer 2016 is set to be a very exciting time for football fans, as this is when the long awaited Euro 2016 tournament kicks off.