Gloucester will be looking to bounce back after their 32-15 to the Ospreys last weekend. 

Dean Ryan’s men remain top of Pool Two but need to win to guarantee a home quarter-final. 

Ulster restored some pride to their campaign with a narrow win over Bourgoin. 

But expect the Guinness Premiership leaders to end the group stages with another win at Kingsholm to march into the final eight.

Lesley Vainikolo will jump straight back into Gloucester’s starting line-up for Sunday’s Heineken Cup pool decider,

Following a period of mourning following the death of his father in New Zealand, Vainikolo makes an immediate return to Gloucester colours and is desperate to turn his attentions towards his rugby before meeting up with the England squad next week.

“I have been fortunate to have received a great deal of support but I am really happy to be back, be around the boys again and thinking about rugby,” Vainikolo said.

“It’s great I have an opportunity this weekend and I want to go out and repay the faith people have in me. There is a job to do on Sunday and we must make sure we achieve it.”

Vainikolo did not feature against either Bath or the Ospreys but has scored nine tries in nine appearances so far this season.

He comes in on the wing for Leon Lloyd as head coach Dean Ryan makes five other changes to the team that lost 32-15 at the Liberty Stadium.

There is a double change at half-back where Rory Lawson and Chris Paterson come in for Ryan Lamb and Gareth Cooper, Nick Wood returns at loose-head in place of Christian Califano, Olivier Azam starts at hooker and Alasdair Strokosch wears six to enable Peter Buxton to move into the second row following the loss of Alex Brown with a broken arm.

“I think it shows the strength of our squad that we are able to rotate two players of the quality of Ryan and Chris,” said head coach Ryan. “Chris is a guy of proven international quality and has a wonderful record. We are hugely fortunate to have him for a game of this calibre and in these conditions.

“He is streetwise and experienced and they are crucial qualities.”

Of Vainikolo’s return, Ryan added: “We have a support structure in place because he has obviously been through a very tough time. But he is a very positive guy and I am sure he will channel it into a performance.

“He handles himself very well and is really keen to get back onto the pitch with us.”

Lawson, who scored a try at the Liberty, has made 13 appearances in all competitions this season, while Cooper and Lamb both move to the bench.

The rest of Ryan’s backline remains intact which means Anthony Allen and Mike Tindall partner each other in midfield and James Simpson-Daniel and Iain Balshaw complete a back three alongside Vainikolo.

Up front, Wood returns following a hamstring strain and will partner Olivier Azam and Carlos Nieto in the front row.

Buxton will make his ninth appearance of the season at lock and skipper Bortolami will wear five. Strokosch, Akapusi Qera and Gareth Delve are the back row.

“Despite the defeat last weekend we are in a good position and know a victory will take us through,” Ryan added. “But it is up to us to go out and produce a performance that will help us earn it.”