Valentina Shevchenko background, rematch Valentina Shevchenko's Unique Background and Upcoming Rematch Valentina Shevchenko is gearing up for a highly-anticipated rematch against Alexa Grasso, following their stunning encounter in March that saw Grasso become the second Mexican-born UFC champion. However, Shevchenko's unique background sets her apart in the world of mixed martial arts. While Alexa Grasso made history as the second Mexican-born UFC champion, Valentina Shevchenko holds the distinction of being the first champion from her homeland. She is a polyglot, fluent in English,