Chelsea midfielder Michael Essien says he should be back inside a month.
"According to [rehabilitation physio Thierry] Laurent, it should not take more than one month for me to play actively again," Essien told 90minutes.
"He has assured me that once we go through a few other exercises for two or three weeks, I should be fit enough to return to the pitch."
On new manager Guus Hiddink, Essien added: "Hiddink has been around for quite a while and knows what it takes to get positive results out of nothing.
"He is a fantastic manager, so we hope he would bring the magic to give us strength we need to mount a challenge in all competitions."