Cavan Sullivan, a 14-year-old soccer player, made history by becoming the youngest player to debut in a major North American sports league, playing for the MLS team Philadelphia Union. Sullivan's debut at 14 years and 293 days surpassed Freddy Adu's previous record. His older brother Quinn also plays for the Union, contributing to their 5-1 victory over the New England Revolution. Sullivan's achievement garnered praise from Adu and marked a significant milestone in North American professional sports history, with expectations of joining Manchester City in the future.