Large salary differences between players often cause unrest within the team. Football players who play with a lower salary experience a loss of motivation. It also creates a perception of financial injustice for anyone looking from the outside. I believe there should be an upper limit for all teams and all players, not just for Kai Havertz. Because the financial imbalances of the clubs occur because there are no such limits. As a result, such thoughts will put pressure on Kai Havertz in my opinion. Therefore, Kai Havertz may underperform his potential this season. I think such situations create more negative effects than positive effects.