He was released in 2001 and has since played for non-league sides Clevedon Town, Team Bath, Mangotsfield United and Paulton Rovers.
Casper then went into management and took charge of Team Bath in 2002 before moving to Football League Two club Bury for three years.
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While undergoing rehabilitation at the University of Bath, he coached Team Bath along with Paul Tisdale, and it was that side that reached the first round of the FA Cup in 2002–03.
England national football team | Bath | Order of the Bath | Bath, Somerset | Argentina national football team | United States men's national soccer team | Mexico national football team | Brazil national football team | Italy national football team | Scotland national football team | Germany national football team | Wales national football team | Spain national football team | France national football team | Netherlands national football team | England national rugby union team | Canada men's national soccer team | Belgium national football team | Wales national rugby union team | New Zealand national rugby union team | The A-Team | New Zealand Māori rugby league team | Ireland national rugby union team | Colombia national football team | Portugal national football team | Denmark national football team | Poland national football team | England cricket team | Sweden national football team | Scotland national rugby union team |
He played for Team Bath while studying for a BA degree in Coach Education and Sports Development at the University of Bath.