Mustafi benched, Auba & Lacca start as Arsenal line up against Valencia
Arsenal come into this fixture with a 3-1 advantage from the first leg at the Emirates last week and will be aiming to avoid conceding 2 or more goals without reply to progress into the final.
Arsenal's deadly duo of Alexandre Lacazette and Pierre-Emerick Aubameyang both start for the Gunners upfront at the Mestalla.
Petr Cech keeps his place in goal as is usual in this competition as Mustafi drops to the bench.
Arsenal starting XI.
📋 Here’s how we line up for tonight’s semi-final second leg…— Arsenal FC (@Arsenal) May 9, 2019