Cech played in the match against Chelsea on Wednesday night, saving two penalties.
One Alvaro Morata spot-kick during normal time, and then Loftus-Cheek's during the shootout.
However, Cech is still fighting to be Emery's No 1, and his strong performance didn't secure anything.
The Arsenal boss is keeping his cards close to his chest on this one, and all the keepers, as well as the press have been kept in the dark.
Cech is looking to prove his skill in Arsenal's final pre-season matches before the Premier League kicks off.
"We still have games to play," Cech told the 'Daily Mail'. "Obviously for every player you do your best, then the manager has his choice to make."
When he was asked whether he had received any assurances, he said: "No, no."
"We are set up a different way, playing a different way from the back."
"Obviously press high on the pitch when we can. Every manager is different - wants you to play in a different way."
"We work on that during the pre-season and I think we are improving with every game."