Rageb Aga, who briefly captained Kenya in 2004, has been handed a one-year contract by Sussex.
Aga, 23, gained a British passport earlier this year after completing his studies at Brighton University and made a one-day appearance for Sussex at the end of the summer. He has played for the county's 2nd Xi for the last two years.
"Even though he is 23, Rageb is still very raw but there is definitely something to work with," Mark Robinson, the coach, told the club's website. "He swings the ball, gets good shape on it and he can bat too. We have been working hard with him this winter tightening up various aspects of his game and he's got a chance."
Chris Liddle has also been awarded a one-year extension to his contract which will keep him at Hove until the end of 2009.