Youth and College
McCarthy played youth soccer with the Dallas Texans 88′. Former teammates include Andre Akpan, Ross LaBauex, Jonathan Villanueva and Omar Gonzalez. This team also won three National Championships along with being the only American team to win the Dallas Cup Super Group. During that year both Manchester United and Real Madrid took part in the international tournament.
McCarthy attended Nolan Catholic High School in Fort Worth, Texas. During his senior year along with leading Nolan Catholic to a State Championship, he was also awarded the Texas Association of Private and Parochial Schools Division I Offensive Player of the Year. As well as being recognized as an All-State selection (2006).
McCarthy played college soccer at Santa Clara University, and later transferred to the University of North Carolina at Chapel Hill. He also played USL Premier Development League for the DFW Tornados and then the Carolina Dynamo in the following year.
McCarthy was drafted in the second round (24th overall) of the 2011 MLS SuperDraft by New England Revolution. He made his professional debut on March 20, 2011, in the Revs’ first game of the 2011 MLS season against Los Angeles Galaxy, and scored his first professional goal on April 2 in a 1-1 tie with the Portland Timbers.