Troest started his senior career in 2002, with
B 93 in the secondary
Danish 1st Division league. In 2004, he moved to
Silkeborg IF in the top-flight
Danish Superliga championship. While at Silkeborg, he made his debut for the
Denmark under-21 national team in September 2004. He moved abroad to play for
Bundesliga club
Hannover 96 in January 2006. In May 2006, he was selected to compete for the Denmark under-21 national squad at the
2006 European Under-21 Championship, where he played in all Denmark's three matches. He signed with
Süper Lig club
Konyaspor in summer 2010. He left
AB in 2016. ==Honours==