Derbyshire all-rounder Ross Whiteley has left the county and will join Worcestershire with immediate effect.
Whiteley, who bats left-handed and is a seam bowler, is keen to play in Australia this winter.
However that does not suit Derbyshire and he will now make the move to New Road.
"Ross intends to pursue his career during the winter in Australia, a move which does not fit in with our plans for a full winter pre-season with Derbyshire," said head coach Karl Krikken in an official statement.
"While we are disappointed to lose Ross, we have sufficient quality in the squad to make up for his departure and we wish Ross well in his future endeavors."
Simon Storey, chief executive, added: "In the light of Ross's request to be released from his contract, the board has agreed it would be in the best interests of club and player that he leaves and a deal has been agreed for his immediate move to New Road."
Whiteley made his debut for Derbyshire against Glamorgan in a Pro40 game in 2008 and played his first county championship game for them against Leicestershire shortly afterwards.
The 24-year-old appeared for in 31 first class matches for Derbyshire, helping them to Division Two title in 2012.
And Worcestershire director of cricket Steve Rhodes is delighted to have agreed a deal with Whiteley.
Rhodes told the county's official site: "Ross has served his cricket apprenticeship and, although opportunities at Derbyshire this season have been limited, he arrives ready to compete for a first-team place.
"He has all-round skills with bat and ball and a desire to progress his career to the highest standard. We all look forward to welcoming Ross to New Road as his presence adds depth and quality to our squad."