UFC 266 fight card: Two title fights, Nick Diaz return on tap for September PPV in Las Vegas

The top of the UFC 266 fight card is loaded, with two title fights and the return of one of the sport's most popular fighters for a rematch 17 years in the making. The event is headlined by a clash of coaches from the current season of "The Ultimate Fighter", as Alexander Volkanovski defends the featherweight championship against Brian Ortega.