In the history of NK Osijek, the year 1971 holds a special place as a moment that marked the club's entry into European football. After a successful season in the First Federal League, where they finished third, the Bijelo-plavi qualified for the UEFA Cup, which was an outstanding achievement for a then-small club from Slavonia.

At that time, Osijek was known for its solid defense and combative style of play. Coach Otto Barić, who led the team, managed to create a harmonious squad ready to face the challenges of European football. The first match in the UEFA Cup was against the prestigious German club, FC Schalke 04, and the stadium in Osijek was filled with passionate fans eagerly awaiting a historic moment.

In the first match, Osijek played bravely and resiliently, ending the game with a 1:1 draw, which was a significant success for the club. The thunderous support from the fans contributed to the players' confidence, and Osijek proved to be a worthy opponent on the European stage. Excitement grew, and the return match in Gelsenkirchen was a challenge that everyone in the club took seriously.

Unfortunately, in the return leg, Osijek could not progress further, but this historic moment was the beginning of something great for the club. This European odyssey opened doors for future talents and laid the foundation for the club's ambitions to compete again at the European level. Since then, NK Osijek has become synonymous with courage and determination, and the memory of this season remains deeply rooted in the collective consciousness of all fans.

The year 1971 was more than just a date; it was the year NK Osijek became part of the European football family. Although times have changed, the spirit of that season still lives in the hearts of Bijelo-plavi fans, who are aware that their idols left an indelible mark in the club's history.