Born in
Northolt London, Trusson had trials with
Chelsea as a schoolboy but was not signed by the club. but he remained with the club until 1980, making over 80 appearances in total. In 1980, he was transferred to another Third Division club,
Sheffield United, In the
1981–82 season Trusson missed only two of United's 46 league games and scored 11 goals to help the club gain promotion back to the Third Division at the first attempt. He was also the Sheffield United player of the year in seasons
1981–82 and 1982–83. In December 1983 he joined near-neighbours
Rotherham United, where he spent four years and made nearly 150 appearances. In 1987, he moved to yet another Third Division club,
Brighton & Hove Albion, and once again helped the team gain promotion. In 1989, he stepped down to the Fourth Division to join
Gillingham, and rounded off his league career with three injury-blighted seasons at the
Kent-based club before moving to
Hong Kong to play for
Sing Tao. On his return to England he signed for
AFC Bournemouth, where former Gillingham teammate
Tony Pulis was manager, but never played a match for the club. He did, however, spend two years serving as the club's
youth team coach, and later had a brief spell as
first team coach. ==Post-football career==