Arsenal face a stern test at London rivals Watford as they attempt to break their way back into the top four.
The Gunners will be without the suspended Sokratis Papastathopoulos for Monday’s trip. He was shown a 10th booking of the campaign in the defeat to Everton.
Emery Is hopeful Granit Xhaka will be involved after suffering a groin injury.
Danny Welbeck, Rob Holding and Hector Bellerin are still missing with long-term injuries.
Provisional squad: Bernd Leno, Peter Cech, Ainsley Maitland-Niles, Stephan Lichtsteiner, Carl Jenkinson, Shkodran Mustafi, Laurent Koscielny, Dinos Mavropanos, Nacho Monreal, Sead Kolasinac, Granit Xhaka, Matteo Guendouzi, Lucas Torreira, Mohamad Elneny, Alex Iwobi, Henrikh Mkhitaryan, Denis Suarez, Aaron Ramsey, Mesut Ozil, Pierre-Emerick Aubameyang, Alexandre Lacazette, Eddie Nketiah.