Willian and Bukayo Saka have not travelled with the Arsenal squad to face Molde, the London Evening Standard report.
Arsenal travelled to Norway yesterday in preparation for their Europa League clash, but both Willian and Saka did not board the plane.
The Arsenal pair have both picked up injuries, which are now being assessed back in North London.
And neither will play a part tomorrow when Arsenal take on Molde.
The Gunners were always likely to rotate their squad for the contest, so Willian and Saka may not have played anyway.
But Arteta will be desperately hoping that neither of their injury problems are serious.
If Arsenal can beat Molde tomorrow they will effectively seal their qualification to the knockout stages, as they have taken nine points out of nine so far.
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