Porto 's defence was not the only thing to be ripped apart at the Allianz Arena on Tuesday night as a jubilant Bayern Munich manager Pep Guardiola was left with a hole in his trousers . Guardiola managed to tear the left trouser leg of his grey garments during an incredibly exciting night for Bayern , who led their opponents 5-0 at half-time . The Spanish tactician 's underwear was on show after the incident , and he joked after the Champions League clash : ' I 'll have to buy new ones for the next match . ' Bayern Munich manager Pep Guardiola ripped a hole during the Champions League match in Germany . Guardiola 's underwear were on show after the Bayern boss managed to rip a small hole in his trousers . The excitement of a 6-1 win against Porto appeared to get the better of Guardiola 's left trouser leg . Away from Guardiola 's clothing , Bayern managed to book a place in the Champions League semi-finals thanks to goals by Thiago Alcantara , Jerome Boateng , Thomas Muller , Xabi Alonso and a brace from Robert Lewandowski . Porto went into the match with a two-goal lead following their 3-1 victory in Portugal , however they were swept aside by the Bundesliga giants . Bayern 's European rivals will be running scared after their outstanding display as Guardiola 's side showed they were a cut above a shell-shocked Porto side . Guardiola 's trousers before the rip ( left ) and after the rip ( right ) during Bayern Munich 's 6-1 victory over Porto . The former Barcelona boss ( far right ) also decided to ditch his suit blazer during the latter stages of the match . Bayern Munich celebrate at the final whistle after booking a place in the semi-finals of the Champions League .
Bayern Munich boss Pep Guardiola ripped a hole in his trouser leg . His underwear were on show during the European match in Germany . The German giants booked place in the semi-finals thanks to 6-1 rout .