Keys joined Newcastle from Swansea last week, and he made a fantastic impression on his debut against West Ham United.
The central midfielder dictated the play during Newcastle’s 2-1 win, and Keys believes there is still more to come from the England international.
“Steve McLaren knows Shelvey to be a talent,” Keys said. “He wanted him. He got a price and he paid it. Done. I think Shelvey is a talent as well. So did Brendan Rodgers, who wanted to make him his No.10 at Liverpool. Do you remember him saying so in that infamous documentary?
“I'm led to believe Shelvey fell out of favour at Swansea for letting it be known he wasn't happy about Garry Monk's sacking. Whatever the reason, Newcastle have got a gem, if they can keep him concentrating on his football. What a ball that was for the 2nd goal.”
Shelvey has been brought to Newcastle to try and add some creativity and composure to their midfield ranks.
Steve McClaren has been trying to create a tactic which allows Newcastle to play on the front foot, and Shelvey's arrival will be crucial for this plan to work successfully.
Shelvey has a wonderful range of passing, and his arrival considerably strengthens Newcastle’s squad.
Shelvey is Newcastle’s second addition of the January transfer window so far, with Henri Saivet also arriving on Tyneside, and there are suggestions that more new players will be snapped up by McClaren’s side in the coming weeks.