He also included goalkeepers Jordan Archer (Millwall), Scott Bain (Celtic), and Jon McLaughlin (Sunderland), all of whom have just one cap each.
Scotland take on Kazakhstan on March 21 in Astana before heading to San Marino three days later.
The Scots hope to carry on the momentum from a successful Nations League campaign that culminated with three wins from four matches.
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(Reporting by Andrew Downie; Editing by Christian Radnedge)
