Shearer scored twice as the Magpies ran out 4-1 winners in the fourth round Worthington cup clash.
"I am too young to remember Hughie Gallacher, but he's up there with the likes of Albert Stubbins, Jackie Milburn and Malcolm Macdonald “ said Robson.
"What makes him so impressive is that he's a modern-day centre-forward and he's playing at a time when defenders are quicker, better in the air and far more competitive. He's performing at the top level in the modern era and he's a special player. Added Robson