The Daily Mail says Toon are on alert after Dundee United midfielder Allan rejected a new contract offer.
Allan, 19, has only played three SPL games but has impressed playing for Scotland at Under 21 level.
Tribal Football Staff are dedicated to the football tribes from all over the world. Our team is passionate about delivering football news to our hundreds of thousands of followers in all the corners of the globe. Football is life, It never stops, Neither do we.