ENGLAND international Olly Morgan will wear the number 15 shirt for Gloucester's pivotal Heineken Cup match against Bourgoin tomorrow.
Iain Balshaw moves to the wing to cover the absence of Lesley Vainikolo, who has returned to New Zealand for a week because of a family bereavement.
"Our thoughts are with Lesley and his family at this time and the club will give him all the support he needs before he returns to the first team squad," said head coach Dean Ryan.
"Family is very much central to Lesley's life and for that reason we respect his wishes to be with them at this time and want his privacy to be maintained. We will not be making any further comment until he returns."
The rest of Ryan's line-up remains virtually intact from the one that has seen Gloucester establish a narrow lead in Pool Two - although he is without second row Marco Bortolami (calf) and breakaway flanker Andy Hazell (twisted knee).
Mike Tindall and Anthony Allen will resume their centre partnership having missed the EDF Energy Cup victory over the Dragons and James Simpson-Daniel returns to the wing.
Ryan Lamb is partnered by Rory Lawson at half-back.
"We need to combine experience with flair and a cutting edge and we believe this backline provides that," Ryan added. "We are heading for a confrontational environment, an environment in which Bourgoin have a good record and we must be ready to handle that.
"The pool is very much still alive which is why these two back-to-back games are so important. Preparation has been good, we have learnt a great deal over the last year or so in this competition about how to win games like this and we must put that into practice tomorrow."
Ryan's forward pack is also experienced. Nick Wood, who signed a new two-year contract extension last week, starts at loose-head, Olivier Azam at hooker and Carlos Nieto at tight-head.
Peter Buxton will skipper the side from the second row alongside Alex Brown. That allows the tough tackling Alasdair Strokosch to wear number six, Akapusi Qera comes in for Hazell and Gareth Delve, outstanding against the Dragons, wears eight.
"Everyone appreciates the intensity levels of this game and central to that will be the performance of our forwards," Ryan said. "We have stacked up well in this competition and we must maintain that.
"This is a game we are thoroughly looking forward to as a group because of its significance."
Ryan has split his bench four-three in favour of his forwards. Andy Titterrell and Christian Califano will be the front row replacements Will James will cover lock and Luke Narraway the back row.
Scrum-half Gareth Cooper, stand-off Chris Paterson and utility back Leon Lloyd are the three-quarter replacements.
GLOUCESTER (v Bourgoin, tomorrow): Olly Morgan; James Simpson-Daniel, Mike Tindall, Anthony Allen, Iain Balshaw; Ryan Lamb, Rory Lawson; Nick Wood, Olivier Azam, Carlos Nieto, Peter Buxton (capt), Alex Brown, Alasdair Strokosch, Akapusi Qera, Gareth Delve. Reps: Andy Titterrell, Christian Califano, Will James, Luke Narraway, Gareth Cooper, Chris Paterson, Leon Lloyd.
Gloucester look to build upon the local derby win over Bath last weekend with Harlequins the visitors to Kingsholm on Saturday (kick off 3pm). Director of Rugby David Humphreys is expecting a close game with the two teams well matched, although it may not be a 78 point thriller like the last time the two teams met.
Named Man of the Match by BT Sport, scrum-half Willi Heinz said after the 15-11 win at Bath on Friday evening that it was a pretty happy Gloucester dressing room and reward for a lot of hard work put in during the week leading up to the game.
Speaking after the 15-11 win over Bath at the Rec on Friday evening, David Humphreys heaped praise on his players, pointing out how they had bounced back after last week's tough defeat to overcome a rough start before controlling the game and earning the win.
Gloucester Rugby hooker Richard Hibbard spoke to the local media this week as the Cherry and Whites prepare to face Bath Rugby in the Aviva Premiership. The Welshman is ready to bounce back at The Rec.
Speaking to the local media about the local derby against Bath at the Rec on Friday evening, Director of Rugby David Humphreys acknowledged that it will be a tough encounter but hugely exciting at the same time and one the squad are looking forward to.
A visibly disappointed Billy Twelvetrees admitted that it was a very sombre Gloucester dressing room as a last minute try and conversion condemned the Cherry and Whites to an 18-19 defeat against Leicester Tigers on Saturday.
A disappointed Tom Savage told GRTV, after the 18-19 defeat at home to the Leicester Tigers, that the whole Gloucester team had put in a fantastic effort, but just couldn't find the extra one or two percent necessary to put away a top side.
Speaking after the narrow loss to Leicester Tigers on Saturday afternoon, David Humphreys says despite there being a lot of good in Gloucester's performance, he rued the failure to close the game out, as well as thanking the home support
After a disappointing opening weekend loss to their Scottish counterparts, England U20s will be eager to bounce back in Italy this evening, with Gloucester flyer Mat Protheroe set to pull the strings from fly half.
Gloucester Rugby make just the one change to the starting line up that won at Bath last Friday evening, flanker Matt Kvesic restored to the starting XV as the Cherry and Whites welcome Harlequins to Kingsholm in the Aviva Premiership on Saturday (kick off 3pm).
The Early Bird deadline for ticket purchases for the Aviva Premiership fixture against Harlequins on Saturday will expire at 6:30pm on Thursday evening, with tickets already limited for one area of Kingsholm.