England bowler Stuart Broad will leave Leicestershire to join Nottinghamshire at the end of the season.
Nottingham-born Broad joined Leicestershire while at school
Nottingham-born Broad has chosen not to renew a one-year contract with the Foxes, who he joined while at school.
"He's the best young prospect in this country and I'm sure he will be a regular in the England team," said Notts director of cricket Mick Newell.
"But he's still very young with a lot to learn and we're really pleased that he has chosen to do that with us."
Leicestershire admitted last month that they would be unable to match the money on offer from one of the larger counties.
But head coach Tim Boon told BBC Radio Leicester he was unhappy that Broad and his agent had been unwilling to even discuss the possibility of staying at Grace Road.
"We made it very clear to Stuart at the start of the season that we wanted him to stay with the club for as long as possible and we were ready to sit down and negotiate a competitive, attractive deal with his agent. He's chosen to go elsewhere," said Boon.
"I would like Stuart to have been with us for another two or three years, just to mature in an environment with people that he knew.
"In reality, this season he's played five games for us. If his career moves [forward] at the rate that it is moving then whoever he plays for are not going to see a lot of Stuart - and one thing I will say is that it will release quite a bit of money from our budget."
There is no better place for me to play and continue my improvement as a cricketer
Newell acknowledged that Broad was likely to become an England regular in the not too distant future, but predicted that Notts would get full value from their new recruit.
"I think [coach] Peter Moores wants him to play more county cricket and develop his game," Newell told the club's website.
"We can help him do that - and he can certainly help us. Bowling on Trent Bridge pitches with their carry, bounce and swing will suit his style and having him available is an exciting prospect for next season."
Broad's father Chris opened the batting at Trent Bridge for much of the 1980s.
"People will automatically assume that I've chosen Notts because I grew up on the boundary edge while my dad was there as a player," he said.
"But it is very much my decision to move to Trent Bridge.
"I believe there is no better place for me to play and continue my improvement as a cricketer in a team capable of winning trophies."
Broad, who had also attracted interest from Warwickshire, is unlikely to see action with the Foxes for the rest of the season as he is involved in the one-day international series against India until 8 September.
He then flies immediately to South Africa as a member of England's 15-man squad for the World Twenty20.
Leicestershire, meanwhile, must ponder the make-up of their seam attack for next summer with David Masters also having announced he is to leave the club, in his case for Essex.