Chelsea's new goalkeeper Jurgen Macho will miss the first few months of the season after suffering a serious knee injury in training.
Macho has only just joined Chelsea
Macho tore his anterior cruciate ligament after twisting his knee in training last week.
"I am very upset for Jurgen because he was just settling in well at his new club and was looking forward to impressing us," said Chelsea boss Claudio Ranieri.
"I wish him well in his recovery and we will be supporting him all the way," he told
the club's website.
Macho's injury paves the way for Marco Ambrosio, also signed on a free from
Chievo, to claim the substitute keeper's jersey behind Carlo Cudicini.
The 19-year-old Lenny Pidgeley is the club's other goalkeeper.