Prop forward Thomas, yesterday named in the Wales starting line-up for the RBS 6 Nations clash with Italy in Rome tomorrow week, will pack down against the Heineken Cup champions seven days before only his second championship start for his country.
Head coach Paul Turner has selected Jason Tovey at full back with Japanese international James Arlidge at No 10 to partner Wayne Evans at half back as the Dragons go in search of a third straight tournament win.
15 Jason Tovey
14 Kevin Morgan
13 Rory Sidey
12 Ashley Smith
11 Martyn Thomas
10 James Arlidge
9 Wayne Evans
1 Hall Nigel
2 Tom Willis (Capt)
3 Rhys Thomas
4 Sean Tomes
5 Andrew Hall
6 Bearman Joe
7 Richard Parks
8 Grant Webb
Replacements
16 Steve Jones
17 Gethin Robinson
18 Lewis Evans
19 Danny Lydiate
20 Phillip Dollman
21 Gareth Maule
22 Robert Lewis
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