A long-time MLS veteran, Hall is been one of the most dependable players in the league over the last half decade. He helped lead the Dynamo to two straight MLS Cups in 2011 and 2012, with 2011 being his first year as a full-time starter. He would go on to set club records for shutouts in a regular season (12), consecutive regular season starts at goalkeeper (57) and postseason shutouts (5) from 2009-2014. He joins D.C. United after the team suffered injuries to their top two goalkeepers.

OUTSIDE MLS: After being drafted by the LA Galaxy in 2007, he spent two seasons in Denmark with Esbjerg.

COLLEGE: Played at San Diego State from 2003-06.