Lastuvka told MF Dnes: “If I stayed, I could have taken part in the Champions League, but the Premiership is the same as the Champions League.
“I like big games and I have them here every round. I want to show I am capable of playing in England.
“I feel fine, this will not put me down. I rather try to learn my lessons. I don’t know English football very much yet.
“It is extremely fast. You cannot lose concentration for even a second, otherwise it will be beyond you.”