Emotional Natalia Silva opens up on loss of her sister. Asks Dana White to be co main backup

Natalia Silva speaks on upcoming fight with former UFC flyweight champion Alex Grasso at UFC 315 in Montreal Canada. Will be ready just incase someone falls out of Co-main event with Valentina Shevchenko vs. Manon Fiorot UFC 315: Alexa Grasso vs. Natalia Silva #UFC315 #AlexaGrasso #NataliaSilva Twitter: http://www.twitter.com/MMACrazy Instagram: http://www.Instagram.com/MMA_Crazy Click on the link below to subscribe http://www.youtube.com/user/mmacrazytv?sub_confirmation=1