Arsenal return to action on Thursday night as they look to overturn a first-leg deficit in the Europa League.
The north London lost 3-1 away at Rennes last week and know they must score at least twice at the Emirates Stadium.
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What's just as important to their hopes of qualification is keeping a clean sheet as one goal for the visitors would require the Gunners to match the result in France just to force extra-time.
They will have to do so without Sokratis following the defender's marching orders for two bookable offences in the first half and head coach Unai Emery admitted last week that decision changed the game.
A 2-0 win would see Arsenal seal a place amongst the last eight.
According to physioroom.com, of the four players on the sidelines, three of which won't play again this season as Hector Bellerin, Danny Welbeck and Rob Holding aren't expected to return to action until next term.
Henrikh Mkhitaryan missed the win over his former club with a back problem and the good news is that he's in line to return against Rennes.
This article was most recently revised and updated 3 years ago