Thiabut Courtois is not the only talented young goalkeeper in the Chelsea ranks.
Petr Cech is one of several senior Chelsea stars impressed with the young talent in the club's ranks, and knows there is real competition for his place.
While all the talk is currently of Thibaut Courtois, who will return from loan at Atletico Madrid, there is another young shot stopper who has aspirations to be Chelsea number one.
That is 21-year-old Croatian, Matej Delac, who has a contract at the club until 2016.
Delac made his first appearance in Chelsea colours at the weekend, featuring in the 2-1 victory over Slovenian side OL Ljubjana.
And Petr Cech singled out his fellow goalkeeper out for particular praise, telling Chelsea's website:
"‘It was positive to see some of the young boys come in again, Matej Delac played his first game for us and he did very well."
Delac spent last season on loan at Serbian side FK Vojvodina and Bosnian club FK Sarajevo from January onwards.
A Croatian under-21 international, Delac finds himself down the pecking order at Chelsea at present behind veteran Mark Schwarzer, and beyond that competing with Mitchell Beeney and Jamal Blackman.
Playing his first game for the Blues, even a friendly, was a positive step, for it shows he is at least on the radar of manager Jose Mourinho.
Further loan spells will be forthcoming, and Delac will have to continue developing strongly.
If he can, then there is no reason he cannot eventually emerge as a viable number two for Thibaut Courtois, long after Petr Cech has eventually moved on.
Could Delac become a realistic number two at Chelsea?