UFC 279 fight card: Nate Diaz, Khamzat Chimaev verbally agree to main event bout in September | CBS Sports Headlines UFC 279 fight card: Nate Diaz, Khamzat Chimaev verbally agree to main event bout in September The fight with rising star Chimaev would be the last of Diaz’s UFC contract … Continue reading UFC 279 fight card: Nate Diaz, Khamzat Chimaev verbally agree to main event bout in September