Xavi is refusing to give up hope of reaching the knockout stages of the Champions League, even if he accepts his side face an almighty challenge to advance to the last 16.

Barca face being eliminated from the competition in the group stage in successive seasons heading into Wednesday's home tie with Bayern Munich.

Xavi's side will be unable to progress should they lose or if Inter beat bottom side Viktoria Plzen, while they will also be eliminated should both games be drawn.

The Catalan giants will be aware of their fate ahead of kick-off at Camp Nou as Inter host Plzen earlier in the day, but Xavi insists that result will not impact his team selection.

"We will all watch the game together in the locker room," Xavi said at Tuesday's pre-match news conference. "Regardless of what happens, we want to show we can compete.

"I already decided on the line-up on Monday, except for any injuries that occur. This is all regardless of what happens in the Inter game."

Barca's dramatic 3-3 draw with Inter two weeks ago effectively leaves them needing wins over Bayern and Plzen while requiring favors elsewhere.

They have lost nine of their 12 Champions League games against next opponents Bayern, who are already through to the last 16, including the past five in a row.

Indeed, only Bayern themselves against Real Madrid (10) have lost more games against a single opponent in the history of the Champions League.

"It's not so much that we require a miracle, because we have a slight bit of hope," Xavi said. "We know it doesn't all depend on us, making it an uncomfortable situation.

"But we know that regardless of what happens in Milan, we face an important match. We have to beat Bayern to show we can compete at this level.

"While there is a little hope we must not lose it. We have done our homework. This competition is being cruel to us, but it's the reality we face."

Jose Mourinho last week labeled clubs that drop into the Europa League in the next round as a result of finishing third in their Champions League group as "failed sharks".

However, when asked for his response to Roma head coach Mourinho's remarks, Xavi said: "There's nothing to answer. If we have to play in that competition, we will compete.

"The [Europa League] is not something we're thinking about yet but if we do compete in that competition we'll go out and fight like lions to win it."

Barcelona have lost their past two home games against German opponents in Europe – against Bayern and Eintracht Frankfurt – but have never previously lost three in a row.