Scotland v Estonia preview
Celtic midfielder Scott Brown will captain Scotland in Gordon Strachan's first match in charge on Wednesday evening.
Birmingham's Chris Burke is being tipped to start alongside Brown in central midfield, having not been capped since 2006, in the friendly against Estonia at Pittodrie.
With defenders Gary Caldwell and Grant Hanley having left the camp due to injury, Strachan must choose between Christophe Berra, Andy Webster and Charlie Mulgrew in central defence.
James Forrest and Ross McCormack (illness) have also withdrawn from the squad.
For Estonia, Motherwell striker Henrik Ojamaa is expected to lead the line.
Goalkeepers: Matt Gilks (Blackpool), David Marshall (Cardiff), Allan McGregor (Besiktas).
Defenders: Phil Bardsley (Sunderland), Christophe Berra (Wolves), Alan Hutton (Mallorca), Russell Martin (Norwich), Charlie Mulgrew (Celtic), Lee Wallace (Rangers), Andy Webster (Hearts).
Midfielders: Charlie Adam (Stoke), Scott Brown (Celtic), Chris Burke (Birmingham), Kris Commons (Celtic), James McArthur (Wigan), James Morrison (West Brom), Matt Philips (Blackpool), Robert Snodgrass (Norwich).
Forwards: Steven Fletcher (Sunderland), Jamie Mackie (QPR), Shaun Maloney (Wigan), Kenny Miller (Vancouver), Steven Naismith (Everton), Jordan Rhodes (Blackburn).