Atletico Madrid's route to the knockout stages of the Europa League is not guaranteed according to club President Enrique Cerezo.
The defending champions have been drawn alongside Israeli side Hapoel Tel-Aviv, Viktoria Plzen of the Czech Republic and Portuguese outfit Academica de Coimbra in Group B.
"It's a tough group. They are all strong teams. But we will come out and fight to become the champions again," said Cerezo.
As winners of the Europa League last season, Diego Simeone's side face Chelsea in the European Super Cup on Friday night and Cerezo is looking forward to watching Los Rojiblancos pit their wits against quality opposition.
"It is between the champion of champions, and is obviously an important competition," he continued.
"The team are calm, but I have noticed that Radamel Falcao is eagerly anticipating the match."
The Colombian striker, who has previously been linked with a move to Stamford Bridge, is in fine form having netted three goals against Athletic Bilbao on Monday.