In the Blue Lock universe, future rivalries could emerge between top strikers who are competing for a spot in the national team, such as Isagi and other talented forwards. Additionally, there could be rivalries between goalkeepers aiming to be the best in the world, defenders trying to outshine each other, or even between coaches with conflicting ideologies on how to develop players. The intense competition and high stakes in Blue Lock create the perfect environment for new and intense rivalries to develop among the characters.