Sri Lanka batsman Tillakaratne Dilshan will join up with defending champions Sussex ahead of their Twenty20 Cup campaign.
The Sharks believe they have pulled off a major coup after landing the player of the tournament from last year's World Twenty20 which was staged in England.
Dilshan will join fellow overseas players Yasir Arafat and Dwayne Smith at Hove for the competition which begins on June 1.
"The recruitment of overseas players is becoming more complex as the international fixture list grows, including the possibility of staging major matches at neutral venues such as the UAE and USA," explained Sussex's professional cricket manager Mark Robinson.
"With Yasir Arafat likely to have Pakistan commitments and Dwayne Smith with the West Indies, the signing of one of the world's leading batsman gives us some exciting options.
"We want our main players to have genuine match-winning ability and we believe we have that with Dilshan, Yasir and Dwayne.
"With that bit of luck always required, I feel our 2010 squad can emulate our 2009 T20 success."