What a balls up. England’s new patron saint, Gary Lineker, a man holier and more virtuous than Mother Theresa and Gandhi combined, strikes again. Never one to turn down the chance of some moral posturing, goal hanging PR opportunist Lineker has spoken out about tonight’s Champions League final. He tweeted: “first time I’ll be cheering for Real Madrid in a Champions League final”. As a former player for Madrid’s arch-rivals Barcelona, this defection is significant. But why has it happened? Because the German side Dortmund has signed a three-year sponsorship deal with weapons manufacturer Rheinm…