Hansi Flick took charge at Barcelona with a focus on improving the team's on-field discipline, specifically addressing the issue of excessive arguing with referees that led to unnecessary bookings and suspensions in the past. Under Flick's guidance, the players have shown remarkable discipline, resulting in no player being suspended due to accumulated yellow cards this season. The team has received the fewest total cards in La Liga, with 50 yellow cards and only one red card.
Barcelona's improved disciplinary record extends to the Champions League, where they have averaged just one yellow card per match. This level of discipline in Europe has not been seen at Barcelona since the 2004/05 season. Currently, only Gavi and Jules Kounde are at risk of suspension in La Liga, while concerns about players facing bans in the Champions League have been alleviated. Flick's emphasis on player behavior has allowed him to work with his best options consistently, contributing to the team's success in maintaining a clean disciplinary record this season.