According to News Web Easy, Go Shindo, a boxer, used to be a female champion of WBC (World Boxing Council). After he stopped boxing in 2017, she undergone the surgery to become a man. Last year he started practicing to become a male boxer.
Shindo Boxer is thinking to take a test in order to become a male professional boxer. However no transsexual person never took a test to become a professional boxer in Japan. JBC (The Japan Boxing Commission) is making a rule but it would take a time.
Someone from JBC saw Shindo boxer’s practice which is similar to competition form. Sindo boxer said 「I should think it is a good to have sometime until I takes a test and I will work much harder. 」
Anyone who wish to read the original article please click below the link.
https://www3.nhk.or.jp/news/easy/k10013758851000/k10013758851000.html

That is really unusual. Good luck to him.
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Thank you for your comment. Yes something like is not common in Japan. How about USA? Have you heard similar stories?
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