Quins youngsters Sam Stuart, Rob Buchanan, Joe Trayfoot and Charlie Matthews have all been included in the England U18s squad, who arrived for their three-match tour of South Africa earlier this week.

The side is preparing to face provincial schools side Boland on Saturday,(12.45pm GMT) at Worcester High School.

Head Coach John Fletcher is looking forward to his young side aiming to continue the momentum of their unbeaten run last season, which included the Six Nations festival last April.

John Fletcher said "Since we arrived on Tuesday we've had three training sessions all of which have progressively got better. We have a talented squad and they will be well led by Captain Alex Gray (Newcastle Falcons/Barnard Castle).

"Boland, like a number of provincial schools sides in South Africa are very strong, physical and good in the tackle. It will be a very good test for our squad especially as a number of our players will be playing at altitude for the first time during this tour and we're all looking forward to getting our three match series underway on Saturday."

1 Vunipola, Mako Bristol Rugby Millfield School 2 Austin, Peter London Irish St Paul's Catholic College 3 Thomas, Henry Unattached Millfield School 4 Matthews, Charlie Harlequins Hurstpeirpoint College 5 Barrow, Dominic Leeds Carnegie Prince Henry's Grammar School 6 Trayfoot, Joe Harlequins Epsom College 7 © Gray, Alex Newcastle Falcons Barnard Castle 8 Jones, Sam London Wasps Aylesbury Grammar 9 Cook, Chris Bath Rugby Millfield School 10 Sharp, Jake Saracens Oaklands College 11 Edgerley, Sam London Irish Wellington College 12 Cobden, Joe Leicester Tigers King Edward VI School 13 Joseph, Jonathan London Irish Millfield School 14 Wade, Christian London Wasps RGS High Wycombe 15 Wallace, Jack London Wasps RGS High Wycombe 16 Buchanan, Rob Harlequins St Bedes School 17 Allen, Harry Saracens Chistlehurst & Sidcup Grammar 18 Glynn, Ben Bristol Rugby Filton College 19 Everard, Matt Leicester Tigers Wyggeston & Queen Elizabeth 1st 20 Stuart, Sam Harlequins Sedbergh School 21 Farrell, Owen Saracens St Georges School 22 Watson, Marcus London Irish St Georges College England U18 play Western Provence on Tuesday August 4 and South Africa Schools on Friday August 7.