YOU SAID:
hi my name is John Sena
INTO JAPANESE
こんにちは、私の名前はジョン・セナです
BACK INTO ENGLISH
Hello my name is John Cena
INTO JAPANESE
こんにちは、私の名前はジョン・シナです
BACK INTO ENGLISH
Hello my name is John Cena
That didn't even make that much sense in English.