Wednesday night represents the latest fixture in a potentially defining week for Arsenal.
With the Premier League leaders having effortlessly breezed past supposed rivals Liverpool with consummate ease at the Emirates Stadium on Saturday evening, tomorrow Arsene Wenger's men face an altogether different test in the shape of Bundesliga outfit Borussia Dortmund.
In a crucial Group F encounter at Signal Iduna Park, the Gunners will be looking to avenge the narrow defeat they suffered at the hands of the same opponents in North London a fortnight ago.
In terms of team news for this clash, reports are fairly mixed in some quarters but it appears that the visitors are likely to be without England duo Jack Wilshere and Kieran Gibbs for the trip to Westphalia.
In addition, Wenger is unlikely to be able to call upon combative Frenchman Mathieu Flamini or long-term midfield absentees Lukas Podolski or Alex Oxlade-Chamberlain.
It has been suggested that Theo Walcott could in line for a return, but that seems rather unlikely for a game of this magnitude.
With such team news in mind, GMS thinks Wenger will select the following XI...
Predicted Arsenal XI:
Szczesny; Sagna, Mertesacker, Koscielny, Monreal; Arteta, Ramsey; Rosicky, Ozil, Cazorla; Giroud.