Atletico Madrid dealt new injury worry before Arsenal Champions League showdown
Ademola Lookman is also a doubt to face Arsenal after missing Atletico Madrid's win
Why Riccardo Calafiori and Christian Norgaard were left out of Arsenal squad amid hope of rule change
Arsenal's improving fitness record left Mikel Arteta with a difficult decision against Newcastle
Arsenal: Why Nick Pope avoided a red card as Premier League issue statement amid Mikel Arteta fury
Mikel Arteta is adamant decisions are going against his Arsenal side
