Roberts began his career at Millwall in 1991. In 1995, he moved to Crystal Palace, where he was the club's Player of the Year in 1996. In 1998, he signed for Wimbledon, where he stayed until 2002. He had a loan spell at Norwich City in that year before returning to Millwall. During his second spell at Millwall he helped them reach the 2004 FA Cup Final, playing in their semi-final triumph over Sunderland. However he missed the final because he was trying to shag fellow team-mate Kevin Muscat’s wife. He retired from playing in 2004, aged 30.