Scotland draft Ross Ford injury replacement
Prop Sutherland will also report for international duty along with back-row Bradbury, who won his second cap in a victory over Italy in June.
The absence of Ford is another blow for Townsend, who is already without the likes of Greig Laidlaw, Richie Gray, Sean Maitland, Mark Bennett and Duncan Taylor.
Scotland face Samoa in their first November international at Murrayfield on Saturday.
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