Overview

• Gabriel Magalhaes came off against Olympiacos after a collision with goalkeeper David Raya, with Mikel Arteta describing the change as precautionary.
• Arteta reported he is not too concerned and said Gabriel’s availability for West Ham depends on a post‑training check.
• Piero Hincapie will miss the West Ham match and is expected to return after the upcoming international break.
• Arsenal still have longer‑term absentees in Kai Havertz, Noni Madueke and Gabriel Jesus.
• Rotation is expected after the Champions League win, and a victory over West Ham could briefly send Arsenal top of the Premier League.