![Martinelli warning, Partey hint - Four things spotted in Arsenal training ahead of Chelsea clash](https://cdn.newsserve.net/ONPglobe256.png)
Martinelli warning, Partey hint - Four things spotted in Arsenal training ahead of Chelsea clash
Arsenal news - Mikel Arteta will have been placing the final touches on his game plan for the weekend in the Gunners' final training session before facing Chelsea
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