Diego Simeone says his past experience of facing Champions League minnows means Atletico Madrid will know to expect a tough test against Qarabag.
Atleti have collected only a single point from their opening two Group C games - having been held to a stalemate at Roma and lost to Chelsea - and Simeone's men must now defeat Qarabag in Azerbaijan to ensure they remain on track for qualification.
But the Spanish side have dropped points in similar games before - drawing 0-0 against Astana in 2015 - and their coach is wary of another upset as he acknowledges the importance of this clash.
"I believe in my team and believe that we can win," he told a pre-match news conference. "I think we are on the right track.
"We should have won the match with Roma, but dropped points. Also we should not have lost to Chelsea.
"But we will continue in the same spirit and there will be more successes. As for how to achieve it, it's important for me to earn three points [on Wednesday] and I'll make any necessary changes in order to do that.
"Even though the opponent may seem weak, we have dropped points against teams like Astana.
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Here are the players @Simeone called up for #QarabagAtleti!