I myself was quite surprised that Atalanta could lose to Club Brugge in the first match and this, Atalanta must be hurt because their defeat occurred because of a penalty kick in the last minute in the second half of the match which made this match have to accept defeat for Atalanta if there was no violation it might have only ended in a draw, Club Brugge was lucky to get a violation in the final minutes of the match which brought them victory in the first leg, and I also think that Atalanta will most likely take revenge in the second leg, they have big ambitions for the champions league this season.
I am very positive for Atalanta and I am not worried about them at all. Club Brugge were very lucky to win the first leg and they won the match in the last minute. After the two teams were level in the first half, it seemed that the match would end in a draw in the last minute of the second half. But Nilsson's penalty in extra time of the match declared Club Brugge as the winners of the match. I firmly believe that Atalanta will come back stronger in the second leg and avenge the first leg defeat.
I am also supporting Atalanta to overturn the one goal deficit against Club Brugge in their second leg, Atalanta is presently third position in Seria A that means they are a strong and formidable squad as well as playing in a very competitive leader unlike their opponent, though football is unpredictable however I think Atalanta has edge over Club Brugge based on the fact that they just managed to win first leg with just a lone goal thus small goal deficit which can easily be cancelled because I think Atalanta would play attacking football while Club Brugge might resort to playing defensively while Atalanta would have to be cautious.