Newcastle's Barcelona binfire must lead to derby delight

Newcastle United emerged from the Camp Nou dressing rooms a goal behind in the Champions League last 16; twenty minutes later their hopes were shattered, with shards strewn amongst a debris of defensive calamities. What could have been Eddie Howe's greatest ever managerial achievement will be remembered as an evening of embarrassment. There's only one way to redeem that, along with a sterile…