Glasgow pair Henry Pyrgos and Dougie Hall have signed new one-year deals with the Warriors.
The Scotland internationals have agreed terms to stay at Scotstoun until at least May 2015.
After joining the club in 2010, 24-year-old scrum-half Pyrgos has gone on to make 55 appearances in the RaboDirect PRO12 and has played 15 times in the Heineken Cup.
He said: "I am absolutely thrilled to have agreed this new deal with the club.
"I love playing for Glasgow and I'm looking forward to staying here and competing for the number nine jersey."
Hooker Hall moved back to Glasgow in 2007, following an apprenticeship with Glasgow Caledonians and stints with Glasgow Rugby and Edinburgh.
The 33-year-old has made 122 appearances for the Warriors and has 42 caps for Scotland.
"It was an easy decision to stay at the club and I'm happy to have agreed this new deal," he said.
"I'm really enjoying my rugby just now and I'm part of a very good squad, which is probably the strongest it's been in the time I've been at the club."
Warriors head coach Gregor Townsend said: "It's fantastic news that both Henry and Dougie are staying at the club.
"Henry is a top-class scrum-half who works hard to improve his game and Dougie is a very experienced hooker who has performed consistently well for the club over the past couple of seasons.
"We're delighted to keep Dougie at Scotstoun and he will continue to play a big role at the club."