Warwickshire batsman Will Porterfield has signed a two-year contract extension with the LV= County Championship Division One champions until the end of the 2015 season.
Ireland captain Porterfield's current deal was due to run out at the end of next summer.
The 28-year-old has made 72 appearances in all competitions for Warwickshire since joining them from Gloucestershire two years ago.
He has made an impressive contribution, particularly in List A cricket and was a key figure in the county's run to the Clydesdale Bank 40 final last season.
Warwickshire's new director of cricket, Dougie Brown, said: "Because of a reduced international calendar, this is the first winter where we've seen a lot of William here at Edgbaston. His attitude and commitment towards pre-season training has made a great impact on other members of the squad.
"He's made great strides in the last few months and we had no hesitation in offering him a chance to commit himself to Warwickshire for the foreseeable future.
"His opening stand of 126 with Varun Chopra in the CB40 semi-final at Old Trafford demonstrated his maturity and ability to perform on the biggest stage.
"His challenge is to do this consistently across all formats of the game and prove himself to be one of the leading batsmen in the domestic game."
Porterfield added: "I've had two fantastic seasons already with Warwickshire and with such a strong squad and a great chance to win more silverware, it was an easy decision to extend my stay here at Edgbaston.
"The majority of the squad has been playing together for a few seasons and we're all really looking forward to competing for more honours in the new season."