Hopkinson was Sussex’s young player of the year in 2000 and made his one-day debut against Lancashire at Hove in 2001, when he took the wicket of John Wood with only his third ball.
He also made an impact in a National League match against Scotland in 2003, when he took 3-19, and followed it up with an unbeaten 67 to seal victory for the Sharks.
He played more regularly in 2005, with a top score of 64, and is thought to be one of the best fielders on the county circuit.
In 2007, he played half of Sussex's championship games as they claimed the title for the second successive year, contributing a best score of 83 in their campaign.
He topped the county's batting averages in the NatWest Pro40 competition, with 170 runs at 56.66.
He earned his county cap at the end of the 2008 season after scoring 736 runs in the championship, and being an ever-present member of the one-day squad.
Hopkinson took on coaching duties after the 2009 domestic season, specialising in fielding.