Bruno Guimaraes trained with Arsenal after Sunday's 3-2 friendly defeat to Borussia Dortmund and is expected to make his debut against Como on Wednesday, with a bigger role to follow in the Community Shield.
Trevoh Chalobah has left Chelsea after 18 years to join Serie A side Como for around £26million, with the deal delivering a significant FFP boost to the Blues under Xabi Alonso.
Arsenal have shifted their focus to Juventus star Kenan Yildiz as their primary attacking target after Vinicius Junior signed a new long-term deal at Real Madrid.
