Glasgow back-row Allister Hogg skippers the Scots, who have full Test cap Nikki Walker among their ranks, against a Welsh side who turned on the style to beat England in Neath in their last match.
Scotland U21: 15 Jonathan Rimmer (Pontypridd), 14 Nikki Walker (Borders), 13 Graeme Morrison (Glasgow Hawks), 12 Tom Philip (Edinburgh), 11 Andrew Turnbull (Watsonians), 10 Alistair Warnock (Boroughmuir), 9 Chris Cusiter (Boroughmuir), 8 Kelly Brown (Melrose), 7 Allister Hogg (Edinburgh – captain), 6 Steve Swindall (Glasgow Hawks), 5 Mark Rennie (Newcastle Falcons), 4 Alasdair Strokosch (Boroughmuir), 3 Geoff Cross (Heriot’s FP), 2 James Henry (Leicester Tigers), 1 John Malakoty (Glasgow Hawks),
Replacements: 16 Fergus Thomson (West of Scotland), 17 Alasdair Dickinson (Dundee HSFP), 18 David Callam (Hawick), 19 Andy Miller (Gala), 20 Mark McMillan (Stirling County), 21 Phil Godman (Newcastle Falcons), 22 Paul Boston (Tynedale).
Wales name under 21 squad