A long and gruelling season has finally come to an end for Newcastle United. It has been a complicated campaign, there is little doubting that. Indeed, Eddie Howe is believed to have understood the many challenges to have arisen during it and is pointing towards them behind the scenes for context as to the adversity. Newcastle have thrashed the likes of Paris Saint-Germain, Tottenham and Chelsea at home. They’ve beaten both Manchester clubs at St James’ Park too, as well as Arsenal. They even ended their hoodoo against Sunderland. Still, few would doubt it has been challenging. Sandro Tonali’s…