[1] Roussel started his professional football career in 1997 with Gent and later joined Premier League club Coventry City in 1999.
He played for various clubs, including Mons, Genk, Rubin Kazan, Standard Liège, Zulte Waregem, Brescia, and HSV Hoek, before retiring in 2015.
[citation needed] Roussel signed a season-long loan deal for Premier League club Coventry City on 12 October 1999.
[4] Having impressed during his initial loan spell, Coventry signed Roussel in January 2000 for a fee of £1.2 million,[5] despite "substantial" bids from Leeds United and Tottenham Hotspur.
[9] Midway through January 2001, with Coventry struggling in the league, a number of bids were made for Roussel's services, including one from Wimbledon.
[10] After refusing to sign for Wimbledon,[11] he criticized the Coventry board for trying to use him as a makeweight in a deal to bring John Hartson to the club.
[citation needed] His goalscoring form attracted interest from bigger clubs in the league and Roussel signed for Genk in 2003.
In August 2007, he spent a week on trial with Scottish Premier League club Dundee United but returned home without signing the agreed loan deal.