Arsenal have a huge game against Dinamo Zagreb on Tuesday, but they enter it without a number of regulars.

Theo Walcott and Alex Oxlade-Chamberlain remain out, as do the three senior players yet to feature in a training session all season: Jack Wilshere, Danny Welbeck and Tomas Rosicky.

After Saturday’s loss to West Bromwich Albion, they have been joined in the crowded treatment room by Francis Coquelin and Mikel Arteta, Arsène Wenger’s two preferred holding midfield options.

So, what now? Let’s start from the back.

Petr Čech will surely start in goal on this massive evening for our Champions League ambitions. Last time David Ospina played it was against Olympiacos, and he dropped a clanger which contributed to the precarious position we find ourselves in now.

Rotation is unlikely to occur in front of the Czech, with Arsenal desperate for all three points. As a result we expect to see the ‘first choice’ back four of Héctor Bellerín, Per Mertesacker, Laurent Koscielny, and Nacho Monreal.

The midfield is an issue thanks to the injuries, but Wenger is almost certain to start Mathieu Flamini. Santa Cazorla’s form may see Wenger tempted to bring in Aaron Ramsey in a central role; the Welshman is available again but may not be fit enough to start.

If he is able to start, Ramsey may be wanted on the right again with Alex Oxlade-Chamberlain and Theo Walcott still out. Mesut Özil and Alexis Sánchez will play, so the choice is between Ramsey, Kieran Gibbs and Joel Campbell for the final attacking midfield berth.

Up front there is little choice but to go with Olivier Giroud, who scored his ninth Arsenal goal of the season on Saturday.