GLOUCESTER'S Wales number eight Gareth Delve will have surgery on July 9 to assess the damage to his Anterior Cruciate Ligament (ACL).
Delve will undergo his operation following consultation with specialist Andy Williams and will be out of action for a number of months and will miss the start of the season.
The 25-year-old suffered damage to his left knee during Wales' summer tour to South Africa and Gloucester's head coach Dean Ryan said: "Gareth is a tremendous individual and an outstanding player - someone we wanted to build around for the future.
"This injury is obviously a significant set-back to him and the club but I have no doubts he will be back in Gloucester colours next season. He has drive, determination and a willingness to succeed and I am sure that will come through in his recovery."
Delve made 20 appearances in all competitions for Gloucester last season following his summer move from Bath.
Meanwhile, flanker Akapusi Qera will see a specialist in London on Monday to determine the extent of his knee injury.
Speaking with the local media before the Gloucester team set off on the long trip north to Newcastle, Director of Rugby David Humphreys discussed his team selection and stated that Friday night's meeting will be a challenging one.
Speaking to the local media on Thursday, Matt Kvesic was looking forward to the trip to Newcastle Falcons, and the captain is looking to lead from the front with plenty for the Cherry and Whites to work on.
Gloucester saw a 12-0 lead overturned by Harlequins on Friday night as the visitors ran out 22-15 winners. After the game, Director of Rugby David Humphreys spoke about missed opportunities on the night.
Speaking to the local media on Thursday, James Hudson explained his excitement for tonight's game with Harlequins and that he is backing the Cherry and White squad to impress during the next set of Aviva Premiership games.
Mitcheldean finance specialist Simplicity is proud to become the latest sponsor of Gloucester Rugby. Keen-eyed supporters will notice Simplicity's PayrollSimply logo on Gloucester's ball boy bibs, stadium billboards and programme adverts.
Gloucester Rugby welcomed back a set of returning internationals at the start of this week, and one of them, James Hook is pleased to be back, and ready to get back to business in a Cherry and White shirt.