The 19-year old will join United from Blackburn Rovers this summer and insists he is excited about what lies ahead.
Jones, who was at the heart of the defence for the England U21 team which has already bowed out of the European Championships in Denmark, says he can't wait to get started with his new club.
"I'm not sure when my first day is going to be. I have got to go home first, go on a few holidays and chill out for a little bit," he said.
"Hopefully, I will get a call from the gaffer and I'm looking forward to that.
"Everyone knows they are one of the biggest clubs on the planet. It's a massive move for me and I just can't wait to get started. It's a massive challenge."