Chelsea goalkeeper Petr Cech has insisted that his side must be wary of the threat from Juventus on Wednesday.
The Blues begin their defence of the Champions League against the Italian champions, who have made a perfect start to the new Serie A campaign.
"We're playing Juventus, who have been missing from the Champions League for a few seasons, so they will definitely want to show they are back," Cech told Chelsea's official website.
"Last time we played them we beat them in the knockout stages [in 2009], so this is a chance for them to get revenge for that defeat.
"Anybody who plays against us will want to raise their game, we are the defending champions so its extra motivation for everybody."
Cech joined Chelsea from Rennes in 2004.
Petr Cech: 'Juventus will want revenge'
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