The other change in the pack comes at hooker as Ed Shervington is called up to partner Matt Mullan and Euan Murray, who misses the Scotland international game on Sunday due to religious reasons.
Centre Matavesi will partner Alex Grove in midfield while the fit-again Chris Pennell takes the place of Josh Drauniniu, who is ruled out of the game through injury.
"It's a very tough place to go Kingsholm, a big derby under lights, but we normally perform well in these evening games," said Hill.
"The players have been in good spirits despite the defeat to Northampton last weekend; they have come in and worked very hard and it all starts for us on Friday.
"We need a couple of wins to get us away from that bottom area of the table and we will have to work very hard on Friday to try and get the first of them.
"Gloucester will pose very similar problems to us that Northampton did," added Hill. "They have a very effective drive and when they played against London Wasps last weekend they were very powerful.
"They are a talented side and it will be a real challenge to us. Our defence will certainly be tested in the wider areas as they have got some very sharp players like Jonny May, Charlie Sharples and Rob Cook.
"They will pose threats all over the field and we have to be on our game. But I believe the atmosphere at Kingsholm will suit us and I'm convinced we will get a good performance."
Warriors vs. Gloucester Rugby
15 Errie Claassens
14 Chris Pennell
13 Alex Grove
12 Josh Matavesi
11 David Lemi
10 Andy Goode
9 Jonny Arr
1 Matt Mullan
2 Ed Shervington
3 Euan Murray
4 James Percival (c)
5 Dean Schofield
6 Sam Betty
7 Matt Kvesic
8 Blair Cowan
Replacements
16 Aleki Lutui
17 Ceri Jones
18 John Andress
19 Craig Gillies
20 Jake Abbott
21 Paul Hodgson
22 Danny Gray
23 Jon Clarke




