Michael Essien suffered a knee injury playing for Ghana on Friday.
He has ruptured his anterior cruciate ligament and will undergo an operation as soon as the majority of the swelling has subsided. We expect this to happen in a week's time.
In the meantime Essien has started rehab in the aqua therapy centre at Cobham which will improve the condition of the knee prior to surgery. A return to full fitness is not expected for several months.
'I am very disappointed to get this injury now and to miss the start of a very important season for Chelsea and Ghana's World Cup qualifiers,' Essien said today (Tuesday).
'I hope to make a full and quick recovery.'