In the starting XV Stuart Hogg returns at fullback after serving his two match ban for a high tackle against South Africa, while hooker David Cherry has to bow out of the campaign after incurring a knee injury which will keep him out for four to six weeks. Cherry is replaced by Richard Ferguson (Melrose) with Michael Liness, who flew in yesterday, taking his place on the bench.
Mark Bennett and Sam Atkin switch positions from their last outing with Bennett moving onto the wing and Atkin taking the reigns at outside centre. Similarly Hamish Watson and James Tyas swap seeing Watson slot in at 8 and Tyas at openside.
Finally, winger Michael Doneghan replaces Alex Spence on the bench.
U20s skills coach and adviser, Rob Moffat, said: “We are really looking forward to the game tomorrow.
“We have shown some potential in the last three games, with some glimpses of quality, but we have never fully taken our chances.
“We have been improving in every game. The boys have been working extremely hard over the last few weeks and we have seen massive improvements in their game.”
Scotland must beat the South Pacific Islanders if they are to avoid relegation to the IRB Junior World Rugby trophy in 2012.
The Scottish youngsters will look to redeem themselves after conceding three tries in five minutes in the closing stages against Ireland under-20s on Saturday. With ten minutes to go it had been anybody’s game at 6-9. The game ended 30-13 to Ireland.
Tonga have also struggled in this year’s IRB Junior World Championships failing to record a victory and taking heavy blows from Australia (54-7), France (27-14) and Fiji (36-18) in Pool B.
Scotland U20
15 Stuart Hogg (Glasgow Warriors)
14 Mark Bennett (Clermont Auvergne)
13 Sam Atkin (Edinburgh Accies)
12 Danny Gilmour (Stirling County)
11 Kerr Gossman (Glasgow Hawks)
10 Duncan Weir (Glasgow Warriors) CAPTAIN
9 Sean Kennedy (Stirling County)
1 Alex Allan (Loughborough University)
2 Richard Ferguson (Melrose)
3 Colin Phillips (Edinburgh Rugby / Stewart’s Melville)
4 Mitchell Todd (Nottingham)
5 Robert McAlpine (Glasgow Warriors / West of Scotland)
6 Mitch Eadie (Boroughmuir)
8 James Tyas (Bath)
7 Hamish Watson (Leicester Tigers)
Substitutes
16 Michael Liness (Edinburgh Accies)
17 George Hunter (Glasgow Warriors / Glasgow Hawks)
18 Robin Hislop (Edinburgh Rugby / Boroughmuir)
19 Jamie Swanson (Boroughmuir)
20 Jamie Stevenson (Westcombe Park)
21 Glenn Bryce (Stirling County)
22 Michael Doneghan (Glasgow Warriors / Stirling County)