Porto - Despite a spate of high-profile injuries, an FC Bayern München ensemble in bullish mood face a goal-hungry FC Porto outfit on Wednesday evening in the first leg of the sides' UEFA Champions League quarter-final at the Estadio do Dragao (kick-off: 20.45 CEST/18:45 GMT).

bundesliga.com previews the clash in Portugal's second city...

Pep Guardiola's Bayern will take a major step towards the last four if they overcome a Porto side unbeaten at the Estadio do Dragao in this season's competition. Indeed, with a later this month and the Bundesliga title within touching distance, the Bavarians know that another treble could be a realistic prospect.

Porto coach Julen Lopetegui, who played with Guardiola for FC Barcelona in the mid-1990s, is sweating on the fitness of Colombian striker Jackson Martinez (r.), who has five goals in six appearances in this season's competition. Another key cog in the Portuguese side's attack, Cristian Tello, will miss out with a hamstring injury.

Without six regulars, including Bastian Schweinsteiger and Franck Ribery, the Bundesliga champions were only able to field four substitutes on Matchday 28. With Medhi Benatia also out and Philipp Lahm to play in midfield, Guardiola could revert to four at the back and hand Thiago (l.) a first European appearance since last March.

Shorn of Martinez and Tello, Porto's attacking threat will come predominantly from Yacine Brahimi's explosive wing play. The Algerian international, who has scored five goals in the competition, carries a dangerous threat over the dead ball and will attempt to use his pace to get in behind Bayern's customarily high defensive line.

While the absence of Ribery and Arjen Robben would affect any team, Bayern's worries have been mitigated by the form of Robert Lewandowski. The Poland captain has scored five times in his last four Bundesliga appearances, and a goal of the season candidate in the win over Frankfurt underlined his present confidence.

Julen Lopetegui (coach): "We want to be the main performers tomorrow, while maintaining respect for our opponents. We are talking about one of the best Bayern sides in the club's history. Bayern have injuries but we don't care about the players they don't have. We have to focus on the ones that will play."

Pep Guardiola (coach): "A Champions League quarter final means that the opponent will be of a very high standard and Porto are a top side. I've been really surprised by how good they are and we won't just need one good game to qualify, but two. We're here with the players we have and we will give it our best tomorrow."

Bayern responded to the reverse at the hands of Borussia Mönchengladbach in late March with two Bundesliga wins and , in spite of well-documented injury problems. The Dragons have recently hammered five past Estoril Praia and three past Rio Ave, in the process reaching a century of goals this season.

Although the Germans have prevailed in the previous two meetings between the sides at this stage, it was Porto who lifted the 1987 European Cup after winning 2-1 in Vienna against an imposing Bayern outfit. The five-time winners, however, have never lost on Portuguese soil, and have tasted defeat only once in this season's competition.