According to "Marca", an article was written about the 19-year-old Leverkusen youngster Mazza. Alonso commented on Maza at the time, saying that he had talked with him and thought he had different characteristics, great potential, and a mature personality.

Mazza joined from Hertha in the Bundesliga 2 for 12 million euros. He hopes that the outside world will not compare him with Wirtz, who moved to the Premier League, but hopes to reach Wirtz's level. Mazza played 36 times in the Bundesliga 2, contributing 7 goals and 5 assists.

His teammate Schick praised Mazza as "a very good player", and Hoffman believed that "he may become a great player." Sporting director Rolfes also praised his technical skills, strong dribbling ability and broad vision.

Despite Leverkusen's hasty start to the season, which even included Ten Hag's dismissal, Mazza saved the team in the German Cup. In the game against Paderborn, he came on as a substitute for 27 minutes, assisted his teammates to equalize the score in the 105th minute of overtime, and scored in the 122nd minute to help the team avoid a penalty shootout.

In those 27 minutes, Maza shot all 4 shots on target and created an excellent opportunity, and was elected MVP. Current head coach Jurman said that Mazza is close to starting and this goal is very important to him.