Bayern Munich coach Pep Guardiola has full confidence in his players and believes anything is possible as his side attempts to overturn their 3-1 Champions League quarter-final deficit tomorrow against FC Porto.

In what many considered the surprise of the tournament, Porto ran riot over Bayern Munich at the Estádio do Dragão last week, scoring two goals in the opening ten minutes before going on to secure a comfortable 3-1 home win.

Bayern now face the task of having to overturning the deficit on Tuesday in Germany, while still missing a number of key players.

David Alaba, Medhi Benatia, Javi Martinez and Arjen Robben have all been ruled out of the return leg, while Juan Bernat, Franck Ribery and Bastian Schweinsteiger are all major doubts.

Despite being hampered with a massive injury toll, Pep Guardiola is confident he has enough quality in his side to overturn the 3-1 deficit and secure passage into the semi-final of the competition.

“In 90 minutes everything is possible,” Guardiola said during his pre-match press conference today. “Of course we’re behind but tomorrow is about performing on the pitch.

“I know it won’t be easy, but I am 100 percent optimistic that we’ll do it.

“After the last few months of work I can promise you we will give it a go. We have one more step to defend out Bundesliga title, tomorrow we’re one step away from a Champions League semi-final.

“I am completely convinced that my players will take their chances tomorrow, and for me as the manager, that is enough.

“Only a treble is enough for a club like Real Madrid, Barcelona or Bayern, but I am proud to be here with these players.”

Bayern Munich will be boosted my the fact that they have won all four home matches in this season’s competition, scoring 13 goals and conceding none.

The club’s overall record against visiting teams from Portugal is eight wins, two draws and no defeats. The German champions have won their previous eight two-legged ties against Portuguese opposition.

Guardiola was asked if he had been “surprised” by the showing Porto put on in Portugal last week. The Spanish tactician said he was not shocked at anything because this is the time of year when the cream rises to the top in the competition.

“I was not surprised at Porto’s performance,” Guardiola answered. “They are an excellent club with excellent players.

“The last few months have been the most challenging of my career – I have learned a lot about the passion of football.

“March and April are the deciding months of the season. It’s the same for Juventus, Porto and every team.”

Programming note: Bayern Munich vs. FC Porto will be shown LIVE on Tuesday at 2:45pm EST on FOX Sports 2 and FoxSoccer2Go.