Brazilian forward Rayan admitted he is unfamiliar with the Japanese national team players ahead of their World Cup 2026 match.
The comments sparked a debate regarding professionalism, with some critics labeling the attitude as arrogant.
Brazil finished atop Group C and is set to face Japan in a high-stakes knockout game in Houston.
Rayan highlighted the mentorship of veteran teammates like Vinícius Júnior as vital to his personal and team development.