Arsenal play host to Standard Liege on Thursday night having got their Europa League campaign underway with a 3-0 success at Eintracht Frankfurt.
Standard also has three points after getting the better of Vitoria de Guimaraes, leaving top spot up for grabs in Group F.
Arsenal havent managed to put together a six-game unbeaten streak in all competitions. Emery has shown willingness to make frequent changes when several key men have been absent through injury.
The 1-1 draw at Manchester United comes just three days before this contest, those youngsters are expected to get another opportunity to impress at the Emirates Stadium.
Standard were quickly singled out as the weaker side of the quartet, but Michel Preud’homme‘s team have already shown that they have the potential to go further in this competition.
Standard have record six wins and a draw from their opening nine matches in Belgium’s top flight, leaving them in second position in the standings behind Club Brugge.
Having impressed against Nottingham Forest in the EFL Cup, Gabriel Martinelli is in line to make his first European start on Thursday night.
Emery is expected to make widespread changes, which should include starts for Hector Bellerin and Kieran Tierney.
Mesut Ozil is likely to feature further forward, as are Joe Willock and Reiss Nelson.
Calum Chambers has picked up an injury, Shkodran Mustafi and Rob Holding are expected to feature at the centre of the backline.
Orlando Sa, Preud’homme should have a fully-fit squad for the visit to North London.
Anthony Limbombe might also feature after being linked with several Premier League clubs during the summer transfer window.
Arsenal possible starting lineup: Martinez; Bellerin, Mustafi, Holding, Tierney; Torreira, Ceballos; Nelson, Willock, Ozil; Martinelli
Standard Liege possible starting lineup: Milinkovic-Savic; Vojvoda, Vanheusden, Laifis, Gavory; Bastien, Bokadi, M’Poku; Carcela-Gonzalez, Emond, Limbombe