Scotland head coach Vern Cotter hopes to have his England-based players available for his side's three autumn Tests.
Cotter has named five players based south of the border - captain Greig Laidlaw, Moray Low, Duncan Taylor, Sean Maitland and Tim Visser - in his 31-man squad for next month's clashes with Australia, Argentina and Georgia.
But a row with Premiership Rugby Ltd (PRL) - the body which represents English club sides - over an outstanding £400,000 injury compensation bills has threatened their participation.
Source: PA