In the 1966-1967 season, Royal Charleroi Sporting Club reached a milestone in its history: the club qualified for the UEFA Cup. This was a time when Belgian clubs were not often seen on the European stage, and Charleroi was among the pioneers paving the way for future generations.

The Zèbres, under the guidance of coach Georges Heylens, had a strong season in the Belgian league and managed to secure their spot in the UEFA Cup by reaching the final round of the competition. It was an exciting time for the club and its supporters, who were eager for the opportunity to compete against foreign opponents.

The first opponent was the Portuguese side Sporting Lisbon, a club with a rich history and much experience in European competitions. The home match was played at Stade du Pays de Charleroi, and the atmosphere was electric. Hundreds of supporters gathered to cheer on their team, and while Charleroi found it tough against the seasoned Portuguese, the team showed resilience and determination.

The return leg in Lisbon was a true test for the Zèbres. Despite the defeat, the experience of playing at such a high level was invaluable for the players and the club. They had the chance to measure themselves against some of the best players in Europe and learned valuable lessons that would help them in the future.

This adventure in the UEFA Cup was not just a sporting event; it also helped shape the identity of Royal Charleroi. The club began to position itself as a serious player in Belgian football, laying the groundwork for future successes. The supporters contributed to this growth with their unwavering backing, following the club through thick and thin.

The participation in the UEFA Cup in 1967 remains an important moment in the annals of Royal Charleroi. It was a time when the club could hold its head high not only nationally but also internationally. Les Zèbres set the tone for future generations, emphasizing the importance of perseverance and ambition in sports.