Robbie Diack has signed a new three-year deal with Ulster that will see him remain at the province until the summer of 2017.
The 27-year-old back row joined Ulster from The Stormers just over five years ago and has become an important member of the first team squad. He made his 100th appearance for Ulster against Cardiff Blues in May.
Diack was born in Johannesburg but is qualified to play for Ireland through residency. He was part of the Emerging Ireland squad that competed in the Tbilisi Cup in the summer.
Commenting on his new contract, Diack said: “This wasn’t a difficult decision to make. Ulster Rugby is an exciting place to be at the moment.
“We have made huge progress as a team, we have a new stadium and excellent facilities.
"I just want to play my part over the next three years and help Ulster pick up some silverware.”