It is not quite do or die, but Arsenal cannot afford to come away from the first leg of their upcoming Champions League qualifier with too much of a task ahead of them.
Celtic were shocked in Kazakhstan earlier, and the Gunners will want to avoid a similarly poor result.
Away goals will be crucial, and a draw will be seen as a positive result ahead of a second leg at the Emirates a week later.
The Gunners were pictured training at London Colney on Tuesday morning, and an 18-man party has been selected to travel to Turkey.
It is as follows:
Szczesny, Fabianski, Jenkinson, Sagna, Mertesacker, Koscielny, Gibbs, Monreal, Wilshere, Ramsey, Frimpong, Rosicky, Cazorla, Podolski, Giroud, Walcott, Sanogo, Gnabry.
Kieran Gibbs has been ruled fit, with Wenger describing his cut head as just a 'knock', while the surprise is the return from injury of Spanish international Nacho Monreal.
Aaron Ramsey, Jack Wilshere, Bacary Sagna and Tomas Rosicky have all shaken off knocks sustained during the surprise 1-3 home loss to Aston Villa on Saturday.
It leaves Wenger with two key decisions to make; (1) does he select Kieran Gibbs or Nacho Monreal; this decision is likely to be dictated by just how much of a recovery the Spaniard has made.
Secondly, how does he line-up his midfield, and will Lukas Podolski be given a start? If Arsenal select a midfield of Ramsey, Wilshere and Rosicky, it will likely see Santi Cazorla out on the left-wing.
But if one of Ramsey or Rosicky are dropped to the bench, Cazorla will revert to the centre and Podolski will start on the left.
It may not just be a case of who is fittest and which is the best XI, but also picking a side to suit the occasion; a tricky away first leg against a dangerous European side.
Santi Cazorla and Laurent Koscielny are not suspended, as was claimed by the Daily Mail earlier this week.
Which line-up would you select? Who do you think Wenger will go with?
image: © Ronnie Macdonald