Roberto Di Matteo has his work cut out for him.
Di Matteo, 42, led Chelsea on an unexpected run to the UEFA Champions League title last spring as the club's interim manager. Now, after receiving the full-time gig, he faces a host of new challenges.
The Blues are expected to challenge for trophies on multiple fronts this season, and Di Matteo will have to deal with several issues both within and outside his squad.
Here are five of the biggest he'll face in the Champions League.