Macy Chiasson will look to climb the rankings when she faces a former title challenger. Julia Avila has been forced out of UFC Fight Night 199 because of a knee injury , and Chiasson will step in on short notice to face Raquel Pennington on Dec. 18 at the UFC Apex in Las Vegas. Both fighters confirmed the booking on social media Monday following an initial report from MMA Fighting . Currently riding a two-fight winning streak, Season 28 “The Ultimate Fighter” winner Chiasson (7-1 MMA, 5-1 UFC) is coming off back-to-back unanimous decision wins over Shanna Young and Marion Reneau
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