This week, the returns to its home base in Las Vegas for Noche UFC . The event celebrating Mexican Independence Day takes place at T-Mobile Arena and features a women’s flyweight title rematch between champion Alexa Grasso and Valentina Shevchenko . Elsewhere, many other combat sports events are taking place that feature a number of familiar names that have competed under the UFC banner. Check out which veterans of the global MMA leader are competing in MMA, bareknuckle boxing and karate this week from Sept.