Eto'o, 33, arrived at Stamford Bridge last summer after a two-year stay in Russia with Anzhi Makhachkala, and reunited with his former Inter Milan boss Jose Mourinho in West London. Despite being the wrong side of 30, Cameroon legend Eto'o has been the clear first choice striker under Mourinho this season, beating out competition from the likes of Fernando Torres and Demba Ba.
Some questioned the decision from Mourinho to bring in an ageing striker, but 12 goals and six assists in 31 have proven them wrong, though injury concerns are beginning to rear their ugly head, forcing Mourinho to use players like Andre Schurrle up front - with limited success.
Mourinho is fully expected to bring in at least one new striker this summer as the likes of Falcao, Diego Costa, Edinson Cavani and Mario Mandzukic continue to be linked with big money moves this summer, but it was anticipated that Torres and Ba would be pushed towards the exit door before Eto'o was.
However, it was today revealed that former Barcelona star has opened talks with Turkish side Besiktas over a move at the end of the season, when his contract at Chelsea expires.
There has been little indication so far as to whether Eto'o would want a move to Turkey, but it's believed that Slaven Bilic's side are willing to offer Eto'o a two-year deal - something that Mourinho may think twice about given Eto'o's age and Chelsea's pursuit of other strikers.
If Mourinho makes a strong push to keep Eto'o then you would imagine Chelsea will be more appealing than Besiktas - though other former Blues stars such as Didier Drogba, Jose Bosingwa and Florent Malouda have also recently made the move to Turkey, where Eto'o would figure to be one of the stars of the league.