Michael Essien is ruled out for six months after undergoing knee surgery . The Chelsea and Liverpool midfielder injured himself in training last week . Chelsea have been heavily linked with Luka Modric and Joao Moutinho .
Michael Essien is ruled out for six months after undergoing knee surgery . The Chelsea and Ghana midfielder injured himself in training last week . Chelsea have been heavily linked with Luka Modric and Joao Moutinho .