The 18-year-old reveals that he has huge admiration for Roberston, even though he plays right-back while the latter is a left-back.
He told the club's website after signing: "I'll learn a lot from him as well. Obviously he's Scottish – same as me – and I've seen a lot of him as well because of Liverpool and Scotland as well.
"So, I'll be looking to learn off him. He's a great full-back. The way he gets up and down, his energy, he can attack, he can defend, I think it's something I can definitely look forward to coming in and learning from players like that.
"Obviously I need to learn a bit more defensively, I can learn from them two as well. I'm excited."