American defender who began his MLS career with Real Salt Lake in 2008. He played for the Portland Timbers from 2011 to 2013 before joining the Houston Dynamo in 2014.
He played college soccer at Old Dominion from 2004 to 2007.
He was selected ninth overall by the Portland Timbers in the 2010 MLS Expansion Draft.
He was born to Michelle and Allan Horst.
He entered the MLS the same year as British star David Beckham.