Ander Herrera insists "it wouldn't be a failure" if Paris Saint-Germain did not lift the Champions League this season.
PSG swept the board domestically and are into the last four of Europe's premier competition for the first time since the 1994-95 season.
The Champions League remains the ultimate goal for the Ligue 1 heavyweights and their owners, Qatar Sports Investments.
It needed a dramatic late comeback against Atalanta, as goals from Marquinhos and Eric Maxim Choupo-Moting secured a 2-1 win, to progress. They will next meet RB Leipzig in Lisbon on Tuesday.
Most pundits make PSG favourites to reach the final, but Herrera says his club have already had a successful campaign.
"If we didn't win the Champions League, it wouldn't be a failure. It would be a failure for 10 teams then," he told a news conference.
"We have already done a fantastic job at national level with four titles won this season. But it is true that Leipzig, or Lyon for example, perhaps didn't expect to be here.
"We have the quality and the ability to win the semi-final, but we have to know they will play free, without the pressure of winning the game."
Herrera believes Leipzig head into the contest without the same pressure as their opponents, a fact he says makes the Bundesliga side dangerous.
"They are a very offensive and very courageous team. They don't have the pressure of having to win the Champions League or play the final. It may be more dangerous for us," he added.
"They have a diagram with the ball, and another without. We will have to prepare well for this match because they will play more liberally, with less pressure.
"The fact that they are offensive can be a good thing for us because our attackers can build up speed, but we will also have to defend well, because they can create a lot of chances."
