Cudicini says former Blues No1 Cech will start for Arsenal in the Europa League final on Wednesday.
“It's a big match for Petr, it's his last match at the end of an unbelievable career and his last chance to win a trophy," Cudicini told Sky Sports.
"Also he will play against a club which has been an important part of his life and career.
"It's a huge, huge match for Petr but he is a professional and he is intelligent.
"For sure all of these things will play an emotional part for him.
“But once you are on the pitch, you forget everything and you play to win the trophy - Petr will do that.
"For us (Chelsea) he is obviously an enemy for 90 or 120 minutes, for however long we are on the pitch."