Jose Mourinho has to decide whether to sacrifice legend Petr Cech or promising Thibaut Courtois this summer after the Premier League giants confirmed Mark Schwarzer has signed a new one-year contract at Stamford Bridge to remain as Chelsea's number two goalie next season.

There have been plenty of speculations over Mourinho's keeper plans for the next campaign as the Belgium international has said that he will not return to fight for a place with Cech, while Mourinho himself recently claimed he wants Courtois back in west London – refusing to confirm whether he is ready to part ways with the legendary keeper.

"When the World Cup in Brazil is over, Courtois will be coming straight back to Stamford Bridge – end of story," Mourinho said recently.

Earlier last week, Belgium boss Marc Wilmots added fuel to speculation that Courtois was expected to play at Chelsea after the World Cup, while Cech could be sold somewhere else.

And now Chelsea have confirmed one of the two keepers will have to leave the team this summer after Schwarzer committed his future to the club to understudy the number one by signing a new one-year deal.

"Chelsea Football Club is pleased to announce Mark Schwarzer has today (Tuesday) signed a new one-year contract," the West London side stated on the club official website.

The Australian international moved to Stamford Bridge last summer on a free transfer from Fulham and became the back-up when Cech was off with a shoulder injury, making 12 starts and one substitute appearance during his debut season at the club.

Should Mourinho finally opt to sacrifice Cech, rather than Courtois, he will join Ashley Cole and Frank Lampard in the Mourinho's summer clear-out of legends – with just John Terry keeping his place in the squad.

Cech joned Chelsea in 2004 from Rennes and has since became a crucial player for the West London side as it won three Premier League titles, one Champions League, one Europe League, four FA Cups and the League Cup twice.