Harrison is a seam bowler and useful lower-order batsman who made his first-class debut in 1999 and became the fifth youngest player to represent Glamorgan in the County Championship.
He did enough to earn a place in the England squad for the Under-19 World Cup in 1999/2000 having already represented them at Under-17 and Under-18 level.
Harrison was chosen to attend the National Academy at Loughborough in 2004 and was joined there by younger brother Adam, who was also with Glamorgan at the time.
Their father Stuart also represented the Welsh county during the 1970’s.
He was named Glamorgan’s Young Player of the Year in both 2003 and 2004, finishing the latter season as joint leading wicket-taker in first class cricket with 52, and was rewarded with a new three-year contract keeping him at Glamorgan until 2007.
Harrison also played an important part in helping Glamorgan to win two one-day titles in the space of three years.
He was then selected in the 14-man England A squad to tour the UAE and Sri Lanka in 2005 but failed to produce his top form in 2006.
Harrison missed the whole of the 2007 season with a back injury.
He returned in 2008 but managed only 29 Championship wickets at an average of nearly 40.