Chelsea coach Jose Mourinho on Friday confirmed that goalkeeper Thibaut Courtois will be out of action for at least three months with a knee injury. The23-year-old Belgium international damaged his medial ligaments during a practice session on Wednesday. “It is a big blow, it is not easy to have the best goalkeeper in the world injured,” the Chelseaboss said. Former Stoke City goalkeeper Asmir Begovic will deputize in the interim.