Norwich goalkeeper Angus Gunn doubtful for Scotland squad

“It’s too early to say if he will be able to go away with Scotland – we’ll know more once he has had a scan.”

Scotland visit Croatia on Saturday before hosting Portugal three days later.

Head coach Steve Clarke is already without 10 players through injury and is also short of options in goal.

Craig Gordon was recalled to the squad in place of Zander Clark after the 41-year-old won his regular starting place back with Heart of Midlothian.

Dundee’s Jon McCracken, who was called up for the first time in September, retained his place in the latest squad.

Of recent call-ups, Robby McCrorie regained his starting place with Kilmarnock on Saturday, while Liam Kelly remains back-up to Jack Butland after joining Rangers from Motherwell.