#UFC 286 #UFC 285 #UFC on ESPN 43 #Leon Edwards #Kamaru Usman #Jon Jones #UFC 281 #UFC 284 #Ciryl Gane #UFC 287 #UFC Fight Night 221 #UFC 278 #UFC 272 #Justin Gaethje #UFC 288 #Rafael Fiziev #UFC 268 #UFC 279 #Colby Covington #Khamzat Chimaev