How Acquired: Selected by the Revolution in the first round (first overall) in the 2013 MLS
2014: Farrell made 32 starts in 2014, playing 22 times at right back and 10 times in central defense. In his second season with the Revs, Farrell played a team-best 2,840 minutes on the regular season, which were the 10th most in MLS among field players. He missed the season opening loss to Houston through injury but made his 2014 season debut at Philadelphia on March 15, lining up as a center back, before returning to his customary right back spot against Vancouver a week later. He started five straight games in central defense between April 19 and May 17 in place of the injured Jose Goncalves before returning to right back, where he spent the majority of the second half of the season. Farrell played the full 90 minutes in each of the Revs 30 regular-season games between March 15 and Oct. 4 before being rested against Montreal on Oct. 11. He returned at right back at Houston on Oct. 16 but was forced to leave the game with an ankle injury in the 50th minute. Farrell made four appearances in the MLS Cup Playoffs, missing the second leg of the Eastern Conference Semifinals against Columbus because of a right leg injury, but playing every minute of the other four contests, including MLS Cup against the LA Galaxy, a game in which he was shown the first postseason yellow card of his MLS career. He also made one appearance in the U.S. Open Cup, coming off the bench for the final 13 minutes of the Fourth Round win at Richmond on June 18.
2013: Made 32 appearances, all starts, at right back as an MLS rookie, tallying one assist. Farrell helped the Revs boast one of the top defenses in MLS, allowing the third fewest goals in the league. He made his MLS debut in the season opening win over Chicago on March 9 and went on to miss just two games all season.
Farrell recorded his first career assist in a 5-0 win over the LA Galaxy on June 2 and was shown his first red card two weeks later, getting sent off midway through the first half of a 4-3 loss to Vancouver on June 15. He started both of the Revs’ MLS Cup Playoff matches against Sporting Kansas City playing all 210 minutes of the series. In the second leg loss at Sporting Park, he replaced Matt Reis in goal for the final minutes of the game after Reis left the game injured and the team was out of substitutions. Farrell also made one appearance in the U.S. Open Cup during his rookie season, starting the quarterfinal defeat to D.C. United on June 26.
Farrell played three years at Louisville, appearing in 64 games and starting 51 while scoring six goals and adding six assists. A 2012 NSCAA first-team All-America honoree and BIG EAST Defensive Player of the Year as a junior, Farrell was also a finalist for the MAC Hermann Trophy as college soccer’s player of the year. He started all 44 games in which he appeared as a sophomore and junior, transitioning from central midfield to defense ahead of his final season at Louisville. He helped the Cardinals advance to the NCAA Tournament in each of his three seasons, including an appearance in the 2010 NCAA College Cup Final. Farrell scored a career-best four goals in his junior season and tallied five of his six assists at Louisville a year earlier as a sophomore.