The French side have already sealed their fourth Ligue 1 title in a row, with a 25 point lead over second-placed AS Monaco with six matches left in the season.
The Parisians take on an injury-ravaged City side missing key players in Joe Hart, Vincent Kompany and Raheem Sterling in their first-leg Champions League quarter-final tie on Wednesday, and despite touting them as favourites for the encounter, Nasri feels PSG couldn’t replicate their League dominance in they played in the Premier League.
"Yes, PSG are favourites because we have many injuries – unfortunately we will not have a full squad," he told L'Equipe.
"PSG also have the experience of playing the quarters two [three] years running. This will be our first time and that is a slight handicap.
"It's true they have a great team, but I do not think they are above the others [in England]. There are no easy games in England, not one. I'd like to see PSG play a Monday night at Stoke, West Ham or at the Emirates against Arsenal.
"Today, the big four is no more. There are six or seven teams who can be champions. It's harder. Barcelona could become champions here - but this is PSG, not Barca.
"Despite all the respect that I have for PSG, we have told ourselves that they are beatable. I was at the Chelsea match at the Parc des Princes and Chelsea had chances. We will have chances too and, if Kun [Aguero] is having a good day, we can hurt them."
Kick-off in the French capital on Wednesday is set for 20:45.