Chelsea's defensive woes look set to continue after Khalid Boulahrouz dislocated his shoulder in the 4-0 victory against Norwich City in the fifth round of the FA Cup clash between the two teams at Stamford Bridge.
The Dutch international was playing his first game for six weeks after hurting knee ligaments against Aston Villa but had to be substituted before half-time against the Canaries.
Chelsea have struggled because of injuries this season to John Terry, Petr Cech and Ashley Cole and Blues boss Jose Mourinho confirmed after the match: "Boulahrouz will be out for some time."
Meanwhile, the Chelsea manager has also dismissed reports that continue to suggest he has fallen out with club owner Roman Abramovich.
Abramovich watched the win against Norwich after missing the previous six matches and Mourinho insisted: "He does not have to explain himself to me. This is his house. This is his club.
"He does not need to give an explanation why he is not here. We work for him, he does not work for us.
"When he's back to his house, not our house, he can do what he likes. When he's back in our dressing room, it is good for us. If he is with the players afterwards it is very, very good.
"There are no problems here."