Sokratis joined Arsenal in the summer from Borussia Dortmund and has adapted to English football well under Unai Emery.
But last month, the 30-year-old picked up a knee injury against Everton and missed two games.
He returned for the 3-0 win over Qarabag in the Europa League but was an unused substitute for the 5-1 win against Fulham before the international break.
And according to reports in Greece, Sokratis could be set for another spell on the sidelines.
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Sokratis Papastathopoulos in action for Greece against Finland (Image: GETTY)
"Sooner or later they will be on the end of a big score - defensively they are all over the place," he told Sky Sports.
"The one thing that gets them out of trouble is that they're always going to score goals.