Joe Gatting has penned a two-year contract with Hampshire.
The 26-year-old joins fellow batsman Will Smith in completing a switch to the Ageas Bowl, while Matt Coles and Ruel Brathwaite made their temporary stays permanent at the end of the last summer.
Gatting is the nephew of former England captain Mike Gatting and has moved to Hampshire after five seasons with neighbours Sussex.
The right-hander made an instant impact at Hove, hitting 152 on his first class debut in 2009.
He has now notched a total of 1,376 runs in 35 matches, passing three figures on two more occasions.
The Brighton-born player also racked up almost 1,500 runs in limited overs cricket for the Sharks.
But he revealed the decision to make the short trip along the south coast was a no-brainer.
He said: ‘I am delighted to be joining such a fantastic club.
‘As soon as I heard Hampshire were interested in me it became clear that’s where I wanted to play my cricket.
‘I’ve heard and seen nothing but good things.
‘I can’t wait for the new chapter and fresh start at Hampshire.’
Hampshire’s director of cricket Giles White revealed Gatting’s arrival will add crucial depth to his squad.
He expects Michael Carberry to continue to play a major part for England – beyond the current Ashes tour – and realises the importance of recruiting cover.
White said: ‘We expect to see less and less of Michael Carberry due to international commitments.
‘So Joe comes in to add depth to our batting.
‘He has shown he is a talented batsman and an athletic fielder and we expect him to be a good addition to the squad.
‘We hope he makes strides in fulfilling his potential over the next couple of years.’
Gatting is clearly a talented athlete, having played football for Brighton & Hove Albion before committing to cricket full-time.
The former striker scored four goals in 44 appearances for the Seagulls between 2005 and 2008.