Arsenal welcome CSKA Moscow to the Emirates Stadium on Thursday for the first leg of their Europa League quarter-final tie.
The Gunners' hopes of making next season's Champions League rely on winning this competition and they have shifted their focus on the upcoming game as a result.
Having overcome AC Milan in the last 16 they will hope to set one foot in the semi-finals by securing a lead over their Russian opponents in the home leg.
CSKA Moscow, meanwhile, booked their place in the quarter-finals with a hard-earned win over Lyon and they represent a stern challenge for the Premier League side.