Leicestershire have completed a deal to sign Northamptonshire wicketkeeper-batsman Niall O'Brien.
The Ireland international, who spent five years at Wantage Road, was allowed to leave the club a year before his current deal expired.
Northamptonshire head coach David Ripley said: "It's sad to see Niall leave the club as he has been a big part of the changing room since he arrived from Kent.
"He has found himself out of the side at times this season through form, fitness and international commitments, meaning the club couldn't offer him the role he wants.
"He's now found some personal security in Leicestershire's offer of a three-year deal and we wish him well for his future."
O'Brien averages 35.91 with the bat in first-class cricket.