Porto beat Bayern Munich 3-1 in Champions League quarter-final first leg . The Portuguese side are now top of Group E with a game to spare after beating the German champions 2-1 on aggregate at Allianz Arena last week.
Porto beat Bayern Munich 3-1 in Champions League quarter-final first leg . Pep Guardiola is confident his side can overturn the difference at home . The Bayern boss says 'only the treble ' will suffice for his team this year .