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Matteo Guendouzi's performances in training left head coach Mikel Arteta unimpressed during Arsenal's winter break in Dubai.
Guendouzi was dropped for Sunday's 4-0 win at home to Newcastle United, and Arteta explained why, per Sam Dean of The Telegraph: "It was about the way we train, the way we play, the way we live."
A quick reprieve seems likely for Guendouzi, with Dean confirming fellow midfielder Lucas Torreira is expected to miss Thursday's trip to Olympiacos in the UEFA Europa League last 32 because of illness.