Bundesliga champions come home to the Allianz Arena in Bayern needing to win by two clear goals to give themselves a chance of advancing to the semis after dropping a 3-1 loss to Porto in the first leg of their quarterfinal matchup last week.

They find themselves in a similar situation Tuesday, as they've needed to make up a two-goal first leg deficit four previous occasions in UEFA competitions. Though Bayern Munich has lost all four of those matches, forward Thomas Muller remain cautiously confident about his club's chances.

"I am positive a 2-0 win at home against Porto wouldn't be a miracle, would it? We'll have the crows behind us, but it's down to us to score the goals on the pitch," Muller said. "We have to play smart and avoid kamikaze tactics. It is important to stay focused and score at least twice, but we can't leave ourselves vulnerable to counter-attacks," he warned.

Porto midfielder Yacine Brahimi expressed similar caution going into the second leg expecting the German club to place the Portuguese champions under heavy pressure after their brilliant first leg performance.

"It was an exceptional display [in Porto]. We couldn't have dreamed of a better result than 3-1, but we've still got an away game to play and it will be very, very difficult," Brahimi said of their chances to advance to their first Champions League semifinal since winning the competition back in 2004.

Bayern captain Philipp Lahm is expected to be back from a stomach virus, which caused him to miss Saturday's 2-0 win against Hoffenheim, while midfielder Bastian Schweinsteiger could also be back from an ankle issue and the flu, according to SkySports.

Porto will have to advance without Danilo and Alex Sandro (both suspended), as well as possibly Cristian Tello, who missed the club's weekend match against Academica over the weekend.

Coverage for the second leg starts at 7:40 p.m. BST, you catch the action via live stream here.