Watson had trials in England and Denmark, but after training with the club during the 2011 pre-season, Watson signed with Houston Dynamo of Major League Soccer on 15 April; he made his Dynamo debut on 23 April 2011 in a 1–1 tie with Chicago Fire. He became the first Sporting Central player to secure a professional contract overseas. Watson appeared for Houston in the 2011 MLS Cup and CONCACAF Champions League competitions.