Pep Guardiola was left purring at Bayern Munich 's first-half performance against Porto as the club put a turbulent week behind them to storm in to the Champions League semi-finals . A 3-1 first leg defeat in Portugal last week followed by the dramatic resignation of long-serving club doctor Hans-Wilhelm Muller-Wohlfahrt had turned the spotlight on Guardiola heading in to the tie . But the Bayern boss reminded the watching world why he is considered by many to be the best manager in the business as his side raced in to a 5-0 lead before half-time on Tuesday night . Bayern Munich players celebrate in front of their fans after the 6-1 demolition of Porto on Tuesday night . Pep Guardiola looks animated as he issues instructions from the touchline at the Allianz Arena . 'It 's easy to love my players now , ' said Guardiola . ' I am the coach of extraordinary players . I did n't expect such a first half . ' Typical of the man though , Guardiola found faults in Bayern 's second half performance as Porto pulled back to 5-1 before Xabi Alonso added a late sixth . 'We can still play better , ' he added . 'We lost the ball here and there and we can improve on that . We had a few problems in the second half . 'They had only a few chances but you should never relax in the Champions League . ' Guardiola talks to captain Philipp Lahm ( third right ) as Mario Gotze ( far left ) , Thiago and Thomas Muller listen in . It is believed that Muller-Wohlfahrt and his team resigned as they felt they were blamed for the first-leg defeat , though neither the doctor , the club or Guardiola have said as much in public . Bayern find out their semi-final opponents on Thursday with Guardiola 's former club Barcelona already through to the last four and the winners of Real Madrid v Atletico Madrid and Monaco v Juventus to join them in the draw . Guardiola celebrates as Robert Lewandowski scores Bayern 's fifth goal in the first half .
Bayern Munich beat Porto 6-1 at the Allianz Arena on Tuesday night . Result gave them a 7-4 aggregate victory in the Champions League last eight . Bayern manager Pep Guardiola hailed his players after the match . READ : Luis Enrique 'happy ' to see Pep Guardiola prove doubters wrong .