Celtic have started to unearth the best version of Nicolas Kuhn after a difficult initial few months for the German winger in Glasgow. After his £3.5 million move from Rapid Vienna, the 24-year-old suffered adverse consequences from dental surgery that led him to lose a considerable amount of weight in a short space of time, limiting his impact last term. However, Kuhn enjoyed a strong pre-season that has since spiralled into a whirlwind start to the campaign, registering five goals and six assists in his opening eight appearances. Last weekend, a brace off the bench alongside two assists sent…