LESLEY VAINIKOLO has been ruled out of tomorrow's Guinness Premiership showdown against European champions Wasps because of a knee injury.
The giant winger, who is the Premiership's leading try-scorer with seven in five appearances, suffered a blow to his left knee against Ulster last week and is not considered for selection.
"Les took a bang to the knee last week and although the injury is not that serious it will prevent him playing against Wasps," said Gloucester's head coach Dean Ryan.
"It's not a long-term issue and he will link up with England as planned. It is obviously a significant blow to us but we are not going to take risks with a player like Les. In a season of this length and intensity you pick up injuries - we just have to manage that."
Ryan has been forced into a series of changes tomorrow and will unveil a new second row combination because of injuries to Alex Brown (arm) and Marco Bortolami (eye socket).
But there is a return for flanker Andy Hazell, who has been out of action since the end of November with knee trouble. He comes in on the openside flank for Akapusi Qera, who was not considered for selection because of a sceptic cut on his hand.
"Andy is a fantastic servant to this club - a Gloucester man who understands the significance of wearing a Gloucester shirt - and he brings a huge level intensity and desire to our efforts," Ryan said.
"We are fortunate to have great options in our pack but Andy's return is very timely and it will be fantastic to see him involved again."
Hazell will pack down alongside Luke Narraway at six and Gareth Delve at eight. Peter Buxton will skipper the side from the second row alongside Will James.
The front row of Nick Wood, Olivier Azam and Carlos Nieto remains unchanged.
There are also changes in the backline. With Vainikolo out, Iain Balshaw switches to the wing and Willie Walker comes in at full-back. Anthony Allen, who has featured in 17 of Gloucester's 18 matches this term, moves to the bench which means James Simpson-Daniel comes into the centre to partner Mike Tindall.
Replacing Simpson-Daniel on the wing is James Bailey, who will make his fifth Premiership appearance of the season.
Rory Lawson and Ryan Lamb are the half-backs.
"There are some changes and we have obviously been disrupted by injuries but I think our set-up is exciting and carries a lot of potential," Ryan added. "We are obviously aware of what Wasps represent and are expecting a reaction from their defeat last weekend.
"This is traditionally the stage of the season where they come into their own - they are a fantastic side full of fantastic players and we know we will have to be very competitive to win."
On the bench, Jeremy Paul and Patrice Collazo are the front row options, lock Dan Tuohy comes into the squad for the first time this season and Alasdair Strokosch completes the forwards.
Gareth Cooper, Allen and Mark Foster are Gloucester's three-quarter options. Chris Paterson is ruled out with a dead leg.
GLOUCESTER (v Wasps, tomorrow, 3pm): Willie Walker, Iain Balshaw, James Simpson-Daniel, Mike Tindall, James Bailey; Ryan Lamb, Rory Lawson; Nick Wood, Olivier Azam, Carlos Nieto, Peter Buxton (capt), Will James, Luke Narraway, Andy Hazell, Gareth Delve. Reps: Jeremy Paul, Patrice Collazo, Dan Tuohy, Alasdair Strokosch, Gareth Cooper, Anthony Allen, Mark Foster.
Speaking to the media following the 31-33 West Country Challenge Cup defeat to Exeter Chiefs at the Memorial Stadium, Director of Rugby David Humphreys was full of praise for his side's battling qualities in a bruising encounter but concerned about the injuries picked up.
The West Country Challenge Cup fixture against the Exeter Chiefs at the Memorial Stadium in Bristol on Saturday (kick off 3pm) will be Gloucester's last chance to work on things like new combinations says Director of Rugby, David Humphreys.
Speaking after the 30-21 West Country Challenge Cup defeat at Bath, Director of Rugby David Humphreys spoke of the improvements his team are making as preseason progresses but acknowledges that there is still work to do ahead of the start of the Aviva Premiership.
Speaking to the local media ahead of Saturday's trip to Bath Rugby in the West Country Challenge Cup, front rower Nick Wood spoke of the hard work put in across the extended preseason and highlighted the competition for front row spots in the squad.
Gloucester have named a 30 man squad for the latest round of West Country Challenge Cup action against Bath on Saturday, with Director of Rugby David Humphreys stressing the need to keep an eye on player workload ahead of what will be a long, tough season.
Describing the 50-7 West Country Challenge Cup win over Bath on Sunday as a '...good hit out...', wing Charlie Sharples admitted that it had been a good opportunity to put into practice things that the squad have been trying out in training in recent weeks.
Speaking to the local media after the 50-7 victory over Bath Rugby on Sunday, David Humphreys was happy with his squad's effort, with the most important aspect being the game time earned by his players.
Gloucester make wholesale changes to the side that started at Exeter last Saturday as they prepare to take on Bath at the Memorial Stadium, Bristol on Sunday in the West Country Challenge Cup (kick off 3pm). The Director of Rugby told GRTV that the players are raring to go and that he's looking forward to seeing different combinations in action.