Simplify the following text for a Grade 14 native English-speaking person.
Original: Yamamoto joined the WWE in late 2007 and debuted for WWE 's developmental territory , Florida Championship Wrestling ( FCW ) , where he was to undergo assessment and training in the `` WWE Style '' of wrestling which is different from the Japanese style .
Simplified: He immediately was assigned to WWE 's developmental territory Florida Championship Wrestling ( FCW ) , to undergo assessment and training in the `` WWE Style '' of wrestling .