What obstacle did Clemente face when the Pirates' regular season began in Pittsburgh?

When the Pirates' regular season began in Pittsburgh, Roberto Clemente faced significant racial discrimination and prejudice. As one of the few Latin American players in Major League Baseball at the time, he encountered hostility from fans and even some teammates, which made his integration into the league challenging. Despite these obstacles, Clemente's talent and determination allowed him to rise above the adversity and establish himself as a Baseball legend.