Lazio goalkeeper Federico Marchetti will be out until the start of next year after pulling a thigh muscle, the club said Monday.
Marchetti, 28, who deputised for injured first choice Gianluigi Buffon at the World Cup last year, suffered the injury in Saturday's win at Lecce.
Albano Bizzarri, who is himself just coming back from injury, is set to step into the breach if judged fit or else the club will again turn to Juan-Pablo Carrizo, an Argentine who came on in Marchetti's stead at Lecce.
Carrizo was signed from River Plate in 2008 but swiftly lost his place and has spent much of the time since on loan at first Zaragoza and then back at River.
Lazio, currently fourth in Serie A, are in Europa League action against Sporting Lisbon and then face Udinese and Chievo before the winter break.