Career
Manzonelli signed with Spanish club Villareal CF in 2006 at the age of 16, and played 25 games with the club"s U-18 team, recording eight goals and 10 assists, as well as played three games with Villareal"s reserves
After trialling with Manchester City and Blackburn Rovers of the of Premier League, Manzonelli signed with New England Revolution in early 2008. Manzonelli made his full professional debut for Revolution on July 1, 2008, as a second half substitute in a United States Open Cup third round game against Richmond Kickers. After his release by New England, Manzonelli trialled with numerous clubs in Europe, including teams from Italy, Spain, Germany, Denmark, Scotland and England.
However, he failed to earn a contract due to Citizenship issues.
Manzonelli finally returned to soccer when he signed for NASL club Atlanta Silverbacks on March 21, 2013. He was called in by Thomas Rongen for the United States under-20 team for a friendly against Mexico on July 11, 2008 and recorded two assists in the 3-0 victory.
Manzonelli played in the Milk Cup in Northern Ireland last July/August with the u-20 United States of America against Belgium, Northern Ireland, and Wales and got an assist against Wales.