Kieran Tierney will make his long-awaited Arsenal debut on Friday and Hector Bellerin should also feature against Wolverhampton Wanderers' Under-23 side.
Arsenal scouted Norwegians Erling Braut Haland and Sander Berge in RB Salzburg's win over Genk and Ibrahima Konate in Leipzig's win over Benfica on Tuesday.
Granit Xhaka has claimed the Arsenal players were "scared" as Watford launched a second-half comeback to earn a 2-2 draw at Vicarage Road on Sunday.
Arsenal fans will have been delighted to see Joe Willock sign a new deal on Thursday and it could be a sign of things to come.
Bordeaux chairman Joe DaGrosa says Laurent Koscielny was always adamant he would leave Arsenal this summer as he was desperate to return "home".
France manager Didier Deschamps has warned Arsenal fans not to expect too much from Matteo Guendouzi so early in his career.