Worcestershire completed its second signing in the space of two weeks with Riki Wessels moving from Nottinghamshire.
Wessels, 32, was released from his contract to accept a three-year contract after Nottinghamshire strengthened his batting resources with the signings of Ben Slater, Joe Clarke and Ben Duckett.
He leaves after seven seasons at Trent Bridge and follows South African sailor Wayne Parnell, who also signed a three-year contract, to strengthen the county ranks for next summer.
It is another sign of Worcestershire's intention to assemble a squad capable of making an instant return to the Division One of the Specsavers County Championship, as well as continue the limited form that saw them win the Vitality Blast for the first time. season
Wessels, born in Australia, who obtained British citizenship in 2016, is particularly known as a destructive hitter in the white-ball format.
The Worcestershire supporters know that too well: he hit nine sixes at 55 for Nottinghamshire at the Vitality Blast on Blackfinch New Road this summer.
"Leaving Nottinghamshire was a difficult decision to make," said Wessels. "I have spent eight years at Trent Bridge and enjoyed being part of successful teams that challenged for the trophies, but now is the right time to make a change."
"Worcestershire will provide a new challenge and I am really looking for it. I hope to start another chapter of my career in a club for which I have a lot of admiration. "
Notts cricket director Mick Newell said:" Both parties believe that now is the right time for a change and for Riki to move forward. We wish him luck for the future. "