Murphy scored a late, late winner in last month's U21 game against Belarus in Paisley and he'll be hoping for a starting place in Baku on the evening of Saturday 14 November.
Forbes' absence will raise a few eyebrows. He's a fixture in the Motherwell squad and shares the SPL top scorer lists along with Kris Boyd. In total he has bagged nine for Motherwell so far this season. All might be revealed on Thursday morning when the full squad is announced for the friendly in Wales!
The full squad is
Goalkeepers
Jamie Barclay (Falkirk on loan to East Stirlingshire)
Scott Gallacher (Rangers)
Alan Martin (Leeds United)
Defenders
Paul Caddis (Celtic)
Brian Easton (Burnley)
David Gray (Manchester United on loan to Plymouth Argyle)
Paul Hanlon (Hibernian)
Jason Marr (Celtic)
Chris Mitchell (Falkirk)
Ross Perry (Rangers on loan to Oxford United)
Midfielders
Scott Arfield (Falkirk)
Barry Bannan (Aston Villa)
Paul Coutts (Peterborough United)
Kevin McDonald (Burnley)
Stephen McGinn (St Mirren)
David Wotherspoon (Hibernian)
Forwards
Leigh Griffiths (Dundee)
Rory Loy (Rangers)
Chris Maguire (Aberdeen)
Jamie Murphy (Motherwell)