He will certainly miss Sunday�s trip to Norwich, for which he was already banned because of a red card at Tottenham.
Nor will he be available for Spain's World Cup qualifiers against Belarus and Georgia but Chelsea are hopeful they will have Torres back in contention for a return to the team before the end of the month.
If his recovery from this knee injury goes to plan, he could target a return in the next Champions League game, against Schalke on October 22, or at home to Manchester City in the Barclays Premier League five days later.