But the 19-year-old centre-back said: "Leeds United were the right club for me. It's the right move and I'm confident of that.
"Dennis Wise and Gus Poyet didn't really have to sell it to me, and I didn't really have to think about it. I like what they're trying to achieve here.
"I didn't see a move coming this early, but it's happened and I've moved on. I found out on Friday afternoon; it was a late thing and it came about by surprise.
"I played at the Stadium of Light on Thursday night for Newcastle's reserves, and after my warm-down on Friday I found out that there had been a few clubs interested.
"I had to decide in a couple hours, and I had to stay at the training ground in Newcastle until the manager gave it the go-ahead.
"I heard Leeds had put a bid in for me and I drove straight down to talk terms with the club. I had another two years left at Newcastle but I didn't want to sit around and play for the reserves, or the odd first team game.
"I've played for three or four years in the reserves and it's not what I want."