The players will attend the pre-Christmas camp at Stobo Castle from Monday to Wednesday.

Five other players have been invited take part in certain aspects of the camp but will not attend the full event.

They are Edinburgh Rugby trio Scott Murray, Simon Taylor and Tom Philip and Scott Gray and Stuart Moffat of the Borders.

Forwards: R Beattie (Gwent Dragons), G Bulloch (Glasgow Rugby), B Douglas (The Borders), S Grimes (Newcastle Falcons), C Hamilton (Newcastle Falcons), N Hines (Edinburgh Rugby), A Hogg (Edinburgh Rugby), A Jacobsen (Edinburgh Rugby), G Kerr (Leeds Tykes), D Macfadyen (Glasgow Rugby), S MacLeod (The Borders), J Petrie (Glasgow Rugby), R Russell (London Irish), T Smith (Northampton Saints), J White (Sale Sharks)

Backs: M Blair (Edinburgh Rugby), C Cusiter (The Borders), A Henderson (Glasgow Rugby), B Hinshelwood (Worcester), S Lamont (Glasgow Rugby), G Morrison (Glasgow Rugby), D Parks (Glasgow Rugby), C Paterson (Edinburgh Rugby), G Ross (Leeds Tykes), H Southwell (Edinburgh Rugby).