Scotland have been dealt a triple injury blow ahead of their crucial World Cup qualifier in Austria with Nathan Patterson dropping out of the squad.
The Rangers right-back made his first senior international start on Saturday night as Steve Clarke's side defeated the Group F whipping boys 1-0 in World Cup qualifying.
Patterson was key in Lyndon Dykes' winning goal, driving forward from deep before his parried shot fell to the big striker for a tap-in.
The Scottish FA have now confirmed the defender is unavailable has been removed from the squad for an unnamed reason.
Norwich midfielder Kenny McLean and Newcastle winger Ryan Fraser have also left the training camp.

Hibs defender Paul McGinn has been added to the squad with Steve Clarke short on cover at right-back.
Regular choice Stephen O'Donnell has been left out of the squad due to Covid issues, while potential makeshift right-back James Forrest has to withdraw through injury.
The trip to Vienna is a must-win for Clarke's men as they look to earn a World Cup qualifier playoff spot as a minimum in the group.