Key Arsenal midfielder Aaron Ramsey has suddenly become a worry for the weekend clash after picking up an injury for Wales.
The nature or extent of the knock is so far unknown, but was confirmed in the Welsh FA's match report.
The FAW website reads: "Ramsey had a shot parried-away by the Andorran keeper as the match moved-into additional time. A few minutes later, he limped-off to be replaced by Emyr Huws."
Arsenal have a quick turnaround for the coming weekend, facing title rivals Manchester City at The Emirates at 12.45pm on Saturday.
The Gunners are already sweating on the fitness of Mesut Ozil, who missed both of Germany's international fixtures with an ankle knock sustained against Leicester City in their last Premier League game.
Wales boss Chris Coleman commented after the game that he did not believe it was serious, but could not assure Arsenal fans he would 100 per cent be ready for the weekend, that instead it's case of keeping everything crossed.
Coleman on Ramsey (taken off late on in Andorra): "He twisted his ankle and got a kick. Hopefully he'll be ok for Arsenal on the weekend."— BBC Wales Sport (@BBCWalesSport) September 9, 2014