Sale Sharks second row James Phillips has signed a new one-year contract extension, with utility back James O'Connor leaving the Premiership club.
Phillips, 31, joined from Bath last summer on a two-year deal but Sale have now extended the contract until 2021.
Phillips said: "I have really enjoyed my first year at the club."
O'Connor, 28, has been released from his three-year contract to sign a deal with Rugby Australia, allowing him to be selected for the autumn World Cup.
"I will be forever grateful to (director of rugby) Steve Diamond, all the players and coaches, and the Sale Sharks supporters who have all helped facilitate my journey back to full power," O'Connor said.
Ex-Toulon man O'Connor played the last of his 44 Tests in 2013, and made 31 appearances for Sale in two years at the club.
Former Bristol and Exeter Chiefs player Phillips featured 30 times for Diamond's side last season.
"We have made some fantastic signings in the pack for the new season, so I'm looking forward to building on the progress we made last year with the new boys that are coming in," Phillips added.