Napoli are struggling under new coach Max Allegri, having lost back-to-back thrillers against Como and Inter. The Partenopei are also missing several key players, while welcoming an Arsenal side that won the Premier League and pushed Paris Saint-Germain all the way to a penalty shoot-out in the Champions League Final last term.

Allegri has a wealth of experience in the Champions League, with 100 games under his belt, winning 45, drawing 26 and losing 29, including two Finals for Juventus. However, this is his return to the tournament after four years away.