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.
A pre-season friendly between Bournemouth and Real Betis in Seville descended into a brawl just before half-time, resulting in red cards for former Manchester United winger Antony and Cherries midfielder Alex Scott.
