Career
He played college football at the University of Miami after graduating from Clearwater Central Catholic High School. He was considered one of the better linebacker prospects for the 2011 NFL Draft. McCarthy was selected in the 4th round, 109 overall, by the Tennessee Titans.
McCarthy recorded the first interception of his career when he picked off a pass from Josh Freeman on November 27, 2011.
McCarthy was voted the AFC Defensive Player of the Week and for his performance against the Buffalo Bills on December 4, 2011. McCarthy recorded 9 tackles, 1 forced fumble, and 2 fumble recoveries.
On June 4, 2015, McCarthy announced his retirement from the NFL, at the age of 27.