Ryan Fraser will be asked to explain why he pulled out of Scotland's crucial World Cup qualifiers this week - only to then train with Newcastle.
Sportsmail has learned that the 27-year-old cited a calf problem when he withdrew from Steve Clarke’s squad on Sunday.
However, Fraser trained with the Magpies on Tuesday as his former Bournemouth boss Eddie Howe took his first session on Tyneside.
Scots boss Clarke will demand answers from the player, and we understand there is anger among some that he was able to train three days ahead of their game against Moldova.