The 21-year-old has admitted that his head was turned by rumours of interest from the Red Devils but he is now focused on his duties at Newcastle
"You can sometimes get distracted by the outside noise and maybe for a little bit in the summer I was a bit," Longstaff told Newcastle's official website.
"It’s hard not to whenever you go anywhere you see your face on the front of a newspaper and you turn the telly on people are talking about you. And it’s not like they’re talking about little things, they’re talking about things that can change your life really."
"So for me, it’s about not listening to them and sticking to what I do"