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 to GRTV in front of the iconic Clifton Suspension Bridge, Henry Trinder explained how important the West Country Challenge Cup is going to be for the Cherry and Whites in their preseason preparations.
Speaking to GRTV at preseason training this Tuesday, new signing Willi Heinz gave an update on his recovery from a leg injury and expressed his enjoyment since his arrival in new surroundings with Gloucester Rugby.
Speaking to GRTV after the 22-23 defeat against Bordeaux-Begles which denied Gloucester a place in next season's European Rugby Champions Cup, Nick Wood rued the momentary lapse in concentration which allowed the French side to snatch victory from the jaws of defeat.
As Gloucester prepare for their 39th game of the season, against Bordeaux-Begles at Sixways on Sunday, David Humphreys told the local media that this week has been all about getting the players mentally and physically ready after a tough game against Connacht last Sunday.
Henry Trinder, Matt Banahan and Jack Yeandle all spoke of their excitement for the West Country Challenge Cup at this afternoon's launch in front of the iconic West Country landmark, the Clifton Suspension Bridge.
With Gloucester Rugby's international stars on intensive camps across the world, it was just Sila Puafisi in competitive action this weekend, playing his part in Tonga's strong 28-18 triumph over Canada in Vancouver.