Scotland and Edinburgh hooker Ross Ford has been ruled out for four months with a pectoral injury.
Ford was hurt in training last week and a scan at Spire Murrayfield Hospital revealed the 33-year-old will need surgery that will rule him out until the run-up to the Six Nations.
Head Coach Gregor Townsend has also added three Edinburgh Rugby forwards to the Scotland squad for the 2017 Autumn Tests.
Back-row Magnus Bradbury, prop Rory Sutherland [pictured] and uncapped hooker Neil Cochrane – the latter a replacement for the injured Ford
Scotland take on Samoa on Saturday at Murrayfield to open their autumn Test campaign and then welcome New Zealand and Australia on November 18 and 25 respectively.