Arsenal take on Valencia at the Mestalla on Thursday evening with a place in the Europa League final at stake.
The Gunners take a two goal cushion to Spain after a 3-1 victory in the first leg at the Emirates last week.
Una Emery has picked a strong side in a bid to win through to the showpiece final in Baku on Wednesday, May 29.
With the Gunners taking a measly point from the last 12 in the Premier League hopes of a top finish are all bar the shouting.
However Arsenal have been strong in Europa, easing past Borisov, Rennes and Napoli to reach the last four.
Unai Emery reflects on his career ahead of 'awesome' Valencia Europa League semi-final clash
Here is Emery's line-up is as follows:
Cech; Monreal, Sokratis, Koscielny. Maitland-Niles, Kolasinac, Xhaka, Torreira, Ozil, Aubameyang, Lacazette.
The formation looks to be three central defenders with two auxiliary wing-backs that will mean a trio at the back when Arsenal attack that reverts to a five when defending.
Two defensive shields with two attacking players in Ozil and Aubameyang with Lacazette up top, ostensibly in a 5-2-2-1 formation which could also be interpreted as 3-4-2-1.
Arsenal open training: Who trained and who didn't as Gunners prepare for Europa League decider
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