However when Vince fell to Maurice Chambers (2-48) the hosts lost three wickets for 12 runs to slip to 190-6.

BBC: Essex stopped by Hampshire's McKenzie and Cork

Campbell, who lost his 2002 European relay gold and 2003 World relay silver after Chambers' positive tests, says his former team-mate is a changed man.

BBC: Darren Campbell forgives ex team-mate Dwain Chambers