ANOTHER RECORD BROKEN TMZSports.com
Soccer star Cavan Sullivan is already a Major League Soccer professional at just 14 years old ... but he tells TMZ Sports he has even bigger goals in mind -- he hopes to win a World Cup for the United States.
The Philadelphia Union midfielder became the youngest player to appear in a United States professional league game on July 17 ... breaking fellow soccer standout Freddy Adu's longstanding record.
We caught up with Sullivan while he worked an honorary shift at a Raising Cane's in Philly this week .