14 Jonny Vaughton
13 Sonny Parker
12 Andrew Bishop
11 Nikki Walker
10 Dan Biggar
9 Mike Phillips
1 Ryan Bevington
2 Richard Hibbard/Ed Shervington
3 Craig Mitchell
4 Ian Gough
5 Ian Evans
6 Jerry Collins (Capt)
7 Marty Holah
8 Filo Tiatia
Replacements
16 Ed Shervington / Marc Breeze
17 Cai Griffiths
18 Andy Lloyd / James Goode
19 Steve Tandy/Ben Lewis
20 Jamie Nutbrown
21 Ashley Beck
22 Barry Davies / Gareth Owen
Ospreys Head Coach, Sean Holley, commented: "This is the tightest I've ever seen the Magners League I think, and with seven games to go there's still a lot to play for. We've five away games in those seven, we've still got to go to places like Munster, Leinster, Ulster and the Dragons after this weekend, they are not easy games. We'll be looking for a big performance on Sunday and we want to improve on our Connacht performance, which wasn't great.
"We've been boosted by the addition of some of the Wales contingent, who will join up with us later in the week. We are grateful to the Welsh management for allowing these boys to return to us, their availability has certainly allowed us more options going into a difficult game.
"Edinburgh are a good side. When you look at their side, a lot of them have been involved with the Scotland A side and the 20's recently. I don't know what the situation will be with the national squad, whether they will give anyone back with the England coming up, but they are a very good unit and are well coached by Rob Moffatt.
"He's a shrewd coach with a good squad. We know it's going to be a hard game, but we've prepared really well for it. We enjoyed a good army camp visit which was to try and keep the boys together between games, and I think that'll stand us in good stead going into the game. We're looking forward to it."