The Scarlets have been trumped in the Six Nations recall game with Edinburgh bringing back nine Scotland players for their clash in Llanelli on Friday night.
That is one more than the eight internationals from the tournament the Scarlets have included in their squad.
Scarlets coach Wayne Pivac has underlined the importance of the game in his region’s quest for a Guinness Pro 12 play-off place by naming Liam Williams, Jonathan Davies, Steff Evans, Aled Davies and Samson Lee in his starting line-up.
Rob Evans, Gareth Davies and Scotland’s John Barclay have been named among the replacements. Ken Owens, Scott Williams and Jake Ball are rested.
There is also a return to the side for fly-half Rhys Patchell, who has recovered from the ankle injury that has sidelined him since New Year’s Day.
Edinburgh acting head coach Duncan Hodge has named an all-international front-row with Scotland’s most-capped forward, Ross Ford, captaining the side from hooker.
He will pack down alongside Allan Dell and Simon Berghan, the latter winning his first national team cap against France in Paris.
Ben Toolis remains at lock, while back-row Cornell Du Preez returns to the black and red after making his debut against England in the penultimate round of the recent Six Nations campaign.
In the backs, 27-times capped Duncan Weir starts in the number ten shirt, while fellow internationalist Damien Hoyland is named on the wing.
Hooker Stuart McInally and lock Grant Gilchrist are named on the bench following their spell in the Scotland camp.
Sam Hidalgo-Clyne is named alongside Weir at half-back. Hoyland is joined in the back-three by Blair Kinghorn and Tom Brown, with Chris Dean and Phil Burleigh starting in midfield.
Toolis will be joined in the second-row by Anton Bresler, who is set to make his first start of the season.
Du Preez will start at number eight with Viliame Mata and Jamie Ritchie on the blindside and openside flank respectively.
The Scarlets were thrashed 45-9 by Leinster in their last league game in Dublin and Pivac wants a response.
He said: “We are hurting after the last performance and we want to put in a big performance for our supporters and for ourselves to get back on the horse and get our confidence back.
“Edinburgh have been a thorn in our side over the last few seasons, we haven’t had a convincing win over them.
“If we can win all our last five games it would give us a very good chance (of making the play-offs). If we drop one game I think it is going right down to the wire.
Hodge said: “We’re delighted to welcome back a number of players after their time in the Scotland camp. We hope they can bring their experience and form into tomorrow night’s clash.
“We’ve trained well this week and, after a short break, are feeling refreshed for our return to PRO12 duties.
“Edinburgh games against Scarlets are always hard-fought and we know they pride themselves on a strong home-record, so there’s no doubt tomorrow’s encounter will be a big challenge.
“However, there’s a good feeling in our camp and we’re looking forward to taking them on in what will certainly be a physical battle.”
Scarlets: 15 Johnny Mcnicholl, 14 Liam Williams, 13 Jonathan Davies, 12 Hadleigh Parkes (c), 11 Steff Evans, 10 Rhys Patchell, 9 Aled Davies; 1 Wyn Jones, 2 Ryan Elias, 3 Samson Lee, 4 Tom Price, 5 Tadhg Beirne, 6 Aaron Shingler, 7 James Davies, 8 Will Boyde.
Replacements: 16 Emyr Phillips, 17 Rob Evans, 18 Werner Kruger, 19 Lewis Rawlins, 20 John Barclay, 21 Gareth Davies, 22 Dan Jones, 23 DTH van der Merwe.
Edinburgh: 15 Blair Kinghorn, 14 Damien Hoyland, 13 Chris Dean, 12 Phil Burleigh, 11 Tom Brown, 10 Duncan Weir, 9 Sam Hidalgo-Clyne; 1 Allan Dell, 2 Ross Ford (c), 3 Simon Berghan, 4 Anton Bresler, 5 Ben Toolis, 6 Viliame Mata, 7 Jamie Ritchie, 8 Cornell Du Preez.
Replacements: 16 Stuart McInally, 17 Murray McCallum, 18 Kevin Bryce, 19 Grant Gilchrist, 20 Viliami Fihaki, 21 Nathan Fowles, 22 Jason Tovey, 23 Glenn Bryce.