Mourinho has played down Chelsea's trophy chances in his first season back and believes his side, alongside Manchester United, were the fancied opponents in the Champions League quarter-final draw .
Yet Mourinho believes the Blues have a 50 per cent chance of advancing to the semi-finals against a PSG side which can boast both Zlatan Ibrahimovic and Edinson Cavani in Wednesday's first-leg at Parc des Princes.
"They have some of the best players in the world playing together in the same team, so they are a very powerful team," Mourinho said.
"When I say 50-50, I think I'm being a bit arrogant because I want to put my team at that level, to say my team are going to play this match without any kind of fear or a complex or problem or limitation."
At certain times this season, Mourinho has suggested Chelsea's strike-force are a limitation, with only Samuel Eto'o in double figures in goals for the campaign.
The Cameroon striker, a Champions League winner with Barcelona and Inter Milan, is doubtful for the trip to the French capital with a hamstring injury.
Eto'o moved from Barcelona to Inter when Ibrahimovic moved in the opposite direction.
Mourinho was Inter manager then and enjoyed working alongside the Swede during his time at the San Siro.
He told Yahoo: "I don't understand when people say he is a difficult guy to work with or a difficult personality.
"When you have somebody that is a winner and wants to win all the time and wants to be the best and is not afraid of the big responsibilities, I think he is very, very easy.
"I only coached him for a year but it was a good year, a good experience and I rate him as one of the best players I have ever coached."
The feeling appears to be mutual as Ibrahimovic, who has scored 10 times in the Champions League this season, wrote in his autobiography: "Mourinho would become a guy I was basically willing to die for."
It is the second successive round in which Mourinho has been pitted against a former protege after facing Didier Drogba's Galatasaray in the last 16.
Mourinho expects the lavishly assembled PSG to provide a stern test and has already questioned the spending of the likes of the Qatar-owned club and Manchester City this season.
The Portuguese has suggested such clubs are flouting UEFA's Financial Fair Play regulations, something Chelsea are attempting to comply with.
Having been bank-rolled by Roman Abramovich during his first spell as Chelsea boss without winning the European Cup, Mourinho knows money does not guarantee success, but he talked up PSG's chances.
"Paris St Germain in the last years the investment was massive, between them and Man City they are two clubs that were completely transformed with Middle East investment," he added.
"They are big, big, big candidates. Last year they reached the quarter-final too and for sure they want to win the competition so it's difficult for us."
His first European match as Chelsea boss was a 3-0 win at PSG.
It was Chelsea's only triumph on French soil and PSG are unbeaten in 28 European home games.
They are runs the Blues are looking to end as they bid to book their place in a seventh semi-final in 11 campaigns.