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 season .
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 .