GLOUCESTER Rugby can confirm, following consultation with an independent knee specialist yesterday, that James Forrester will have surgery on torn left knee cartilage tonight.
Forrester has been examined by both Gloucester Rugby's and England's medical teams and is expected to be out of action for up to six weeks after picking up the injury during Gloucester's 37-20 Heineken Cup defeat to Leinster.
"James has been one of our stand-out performers so far this season and is capable of becoming an international-quality forward," said his club coach Dean Ryan. "This injury is obviously devastating news for him, Gloucester and England.
"But everyone will offer him all the support he needs to make a full recovery - he is a very determined individual and we obviously hope to see him back in action as soon as possible."
England Head Coach Andy Robinson OBE said: "We wish James a speedy and complete recovery. It is a blow for Gloucester and England because he was very much in contention for this series but the important thing for him now is that he gets the best treatment and rehabilitation."
Forrester, the Guinness Premiership player of the month for September, has made six appearances in all competitions and has scored four tries.
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.
Speaking to GRTV after the 40-32 victory over Connacht on Sunday, skipper Billy Twelvetrees explained that Gloucester had had to learn to be patient and cut out the errors to earn the win and progress to next weekend's final play-off against Bordeaux-Begles.
Jonny May's superb late score capped a thrilling 40-32 European play-off win over Connacht on Sunday. The winger spoke afterwards of his team's character and spirit as he looked ahead to one more week of rugby.
Speaking to GRTV this afternoon, Director of Rugby David Humphreys hailed the 'never say die' attitude of the team, after despite not being at their best, fighting back to take a 40-32 win after extra time over Connacht.
Jonny May continues on the wing on Sunday as Connacht come to town, and the England wing explains to the local media this week that he is delighted with his form and is looking forward to taking on Pat Lam's men.
Premiership Rugby have this morning confirmed the order of fixtures for the 2015/16 season, and Gloucester Rugby will start their campaign at Kingston Park, taking on Newcastle Falcons on Friday 16 October, 19:45.