Chesney Hughes will play for Derbyshire in 2013 as an England Qualified cricketer after completing his residency.
He has signed a two-and-a-half year contract committing him to the club until September 2015.
Hughes, born in Anguilla, made his List A debut for Derbyshire in 2009. He has since gone on to make 100 first team appearances in all competitions.
Chief Executive Simon Storey said: “It is a great moment on a personal level for Chesney who has an exciting future in the game and I’m sure will make many valuable contributions during the coming years.”
Following last season's relegation, Worcestershire will be looking to their academy to help take them back up.
With a number of players coming in and out, Northamptonshire will be hoping their squad overhaul brings more consistency in performances.
Leicestershire continue to produce a number of talented, young cricketers but their failure to build a winning team makes success unlikely.