![Expected Arsenal lineup vs Olympiacos as Willian starts but Gabriel misses out](https://cdn.newsserve.net/ONPglobe256.png)
Expected Arsenal lineup vs Olympiacos as Willian starts but Gabriel misses out
How the Gunners are expected to line up for their crucial Europa League round of 16 tie at the Georgios Karaiskakis Stadium, with Mikel Arteta facing a number of selection decisions
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