The badges, which feature a small logo and the word 'debut' in blue, will be worn by players who are making their Champions League debut. The initiative is a collaboration between the UEFA and a well-known football sticker brand. The badges will be a special addition to the shirts of players like Kodai Sano, Sven Mijnans, and Shaqueel van Persie, who will be making their Champions League debut.

The idea of debut badges was first introduced at the World Cup, where players like Donyell Malen, Lamine Yamal, and Erling Haaland wore special shirts with a small logo to mark their debut. The initiative was well-received, and the UEFA has now decided to introduce it in the Champions League as well. The badges will be a unique feature of the Champions League, and will add an extra layer of excitement and recognition for players who are making their debut in the competition.

The UEFA has confirmed that the debut badges will be worn by players who are making their Champions League debut. The badges will serve as a reminder of their achievement and will be a special memento for players who participate in the competition.