SNS GroupScotland will be without Millwall forward Kevin Nisbet for their game against Spain on Thursday.
The former Hibernian striker, who has scored one goal in ten caps, has dropped out of the squad with an injury on the eve of the game in Sevilla.
That leaves Steve Clarke with three forwards to choose from in Che Adams, Lyndon Dykes and Luton Town’s Jacob Brown.
Bournemouth star Ryan Christie could also be used in an attacking role as the national team look to secure their place at Euro 2024.
The national team confirmed Nisbet’s departure from the squad on Wednesday with no replacements called up.
Hearts striker Lawrence Shankland was left out of the squad for the game, but could be an option to come in for Tuesday’s friendly against France.
A point against the Spanish would be enough to qualify for the Euros being held in Germany next summer.
Even if Clarke’s men lose in Sevilla their place at the tournament could still be secured on Thursday if Norway fail to beat Cyprus in Larnaca.
If Norway win however then Scotland could qualify without kicking a ball on Sunday if Spain get a result in Oslo.
They also have a safety net of the last two group games, away to Georgia and at home to the Norwegians, to get the points required to get them over the line.
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