Edinson Cavani
Cavani is believed to be keen on leaving PSG this summerReuters

Chelsea are reportedly lining up a move for Paris Saint-Germain striker Edinson Cavani, despite the Blues' already exceeding the Premier League's restriction of only 17 overseas players over the age of 21 in a 25-man squad.

Although the addition of Didier Drogba increasing Chelsea's foreign players' number to 18, the Blues are reportedly hoping to make room for Cavani by offloading the likes of Petr Cech and Jon Obi Mikel.

While Cech has become surplus to requirement at Chelsea following the return of Thibaut Courtois, Obi Mikel is also no longer required after the arrival of Cesc Fabregas from Barcelona.

The sale of Romelu Lukaku to Everton for £28m (the Toffees club record) has also freed some funds so that Chelsea will be able to comply with UEFA's Financial Fair Play rule.

According to ESPN, PSG are reportedly willing to let Cavani go for £40 million, even though they paid £55 million for his serves last summer.

Despite claiming that he feels "great in Paris" and is "certain to stay" at PSG this summer, the Uruguayan striker is believed to be keen on making a move out of PSG after failing to establish himself as the first choice striker at the French club.

PSG manager Laurent Blanc, who has preferred Zlatan Ibrahimovic over Cavani as the first choice striker, usually deployed the Uruguayan in the wings last season, and this switch from his natural centre-forward position is believed to have contributed to the dip in his form. 

The sale of Cavani would also allow the French giants, who have already spent £50 million on the transfer of David Luiz, to comply with the Financial Fair play rule as they look to lineup another big bid to lure in Real Madrid's Angel Di Maria.

However, despite the speculations of Chelsea looking to bring in a new striker, manager Jose Mourinho claims that Fernando Torrres will not be leaving Chelsea this summer.

Although the 30-year-old Spaniard, who has proved to be a big flop at Chelsea following his £50 million switch from Liverpool in January 2011, was being linked with a return to Atletico Madrid following the arrivals of Diego Costa and Didier Drogba, Mourinho insists that Torres is "not for sale."

"Three strikers is fundamental in the squad and we have three strikers. Fernando is not for sale," Mourinho told ESPN.