The Blues must overturn a 3-1 deficit from the first leg at Parc des Princes last week if Jose Mourinho is to continue his perfect last-eight record in competition.
PSG are a very strong team so it is going to be difficult
Laurent Blanc’s PSG side are the reigning French champions, and are the runaway leaders in Ligue 1 this season.
And Azpilicueta, who joined Chelsea in a £7m deal from Marseille in 2012, is under no illusions about the size of the task facing the west London side at Stamford Bridge on Tuesday night.
“So French clubs haven’t got too far in the Champions League but PSG did well last year and as a country they are improving,” added Azpilicueta.
“Now we know that PSG are a very strong team so it is going to be difficult. They have improved a lot since I left Marseille and they have quality players.”
• The Blues have kept eight successive clean sheets at Stamford Bridge, and are unbreached in 732 minutes since Javier Hernández’s consolation in Manchester United’s 3-1 loss on 19 January.
• Chelsea beat visitors Arsenal 6-0 on 22 March – the Blues’ biggest victory under José Mourinho.
• Paris have conceded three penalties in their last four Champions League games.
• Only Barcelona’s Xavi Hernández has attempted and completed (1,016/936) more passes than Paris midfielder Thiago Motta (872/785) in this season’s Champions League.
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