 Prior to attending college in the United States, Trousdell played in the National Basketball League for the Hawke's Bay Hawks and Canterbury Rams, winning the league's Rookie of the Year award in 2000.Between October and December 2006, Trousdell played in Europe for BC Boncourt (Switzerland) and CD Villa de Los Barrios (Spain).Prior to his Europe stint, he helped the Hawke's Bay Hawks win the 2006 NBL championship.