In 2009, she played for the Washington Freedom in the inaugural season of the WPS after being taken 17th overall by the Freedom in the WPS General Draft. She started 18 of the 19 games she played for the Freedom, scoring two goals with one assist.
Lindsey was called into national team training camps in 2009 and 2010 and was in Residency Training Camp at the Home Depot Center in 2004 and 2006. She played one match in the 2011 FIFA Women's World Cup in Germany against Colombia which the U.S. won 3–0. She has been described as one of the best possessors of the ball on the U.S. team and is known for her excellent work rate, superb passing, and willingness to sacrifice for the team. As a central midfielder, she led the team in assists in 2010 with seven.