Sunderland-born all-rounder Paul Coughlin has signed a new three-year deal with Durham.
The 23-year-old, who has made 21 first class appearances since his 2012 debut, came through the county's academy system.
He has played for Durham across all three formats, despite back injuries limiting his opportunities.
"I'm extremely proud to play for Durham and believe I can help the club going forward next season," Coughlin said.
"It's nice to have been handed a three-year deal as it gives me time to fully develop my skills and it means I can relax knowing I'll be at the Emirates Riverside for the long term."
"Paul is an outstanding talent, as his exceptional performance last week showed, and his signature is an important acquisition for the club," chief executive David Harker said.
"He has already captained the club, against Sri Lanka 'A' this summer, and we see him as an important part of the club's future plans."