YOU SAID:

Thos was extremely surprised to find out that his opponent in the grand master's arena was actually his friend Hulk.

INTO JAPANESE

Thos はグランド マスターのアリーナで相手が実際に彼の友達のハルクをあったことを見つける非常に驚きました。

BACK INTO ENGLISH

Thos finding was actually Hulk of his friend's opponent in the arena Grand Master was very surprised.

INTO JAPANESE

Thos 発見は実際にハルク アリーナで彼の友人の相手のグランド マスターは非常に驚いた。

BACK INTO ENGLISH

Thos found actually in Hulk arena Grand Master of his friends are very surprised.

INTO JAPANESE

Thos ハルク アリーナのグランド マスターの彼の友人は、実際には非常に驚いています。