Petr Cech is adamant Arsenal will keep their feet on the ground in Thursday's Europa League semi-final second-leg clash with Valencia.
And the veteran goalkeeper insists he is ready for the game despite not playing regularly this season.
The Gunners travel to the Mestalla defending a 3-1 lead from the first leg in north London last week.
Cech, 36, played in that game having been reduced to playing in the Europa League campaign in his final season before his retirement.
The former Chelsea goalkeeper, who could yet face his old side in the Europa League final in Baku on May 29, believes Arsenal will not capitulate having earned a lead heading into the return fixture.
"We keep our feet on the ground and we know that tomorrow is another difficult 90 minutes," he said.
"We gave ourselves a two-goal cushion, but you know, two goals with the away goals now is an advantage but it's not a decisive advantage.
"We can see that in the past and we can see it in the future, ties will get overturned with that deficit because football is about that. We respect the opponent and it will be very difficult."