World Cup finals bound France's third choice goalkeeper Mickael Landreau is facing five weeks on the sidelines after suffering a calf muscle injury, sources at his Ligue 1 club Bastia revealed on Tuesday.

The 34-year-old -- who won two league titles with Nantes in 2001 and Lille in 2011 -- picked up the problem in the 3-0 defeat by Marseille in their Ligue 1 clash on Saturday.

He is due to miss Ligue 1 games against Monaco, Saint Etienne and defending champions and leaders Paris Saint Germain.

Landreau is currently third in Didier Deschamps' pecking order to keep goal for France at the World Cup finals in Brazil behind Tottenham's Hugo Lloris and Steve Mandanda of Marseille.

Landreau has 11 caps to his name. He made his debut in the 2001 Confederations Cup, and was a member of the French squad that reached the 2006 World Cup final, although coach Raymond Domenech didn't give him any playing time.

After falling out of favour - he was overlooked for Euro 2008 - he earned a recall in 2012 from Deschamps, with Cedric Carrasso making way.