The stars of UFC 278 took to the scale at Friday's official weigh-in session ahead of fight night in Salt Lake City, with the night's key protagonists successfully hitting their mark to make their respective bouts official.

Luke Rockhold and Paulo Costa preview their matchup for media, as do Leon Edwards and Kamaru Usman. Merab Dvalishvili sharpens his skills; Rockhold shops with Chito Vera. Dana White hosts a fiery press conference.

Follow the weigh-ins with the UFC team in their UFC 278 live weigh-in show, as they preview the fights, comment on the fighters as they take to the scale, and throw in some fun and games along the way.

The UFC 278 pre-fight press conference in Salt Lake City, Utah, saw the top six fighters on the card take to the stage at the Vivint Arena to face questions from the assembled media ahead of the UFC's latest pay-per-view event.

Luke Rockhold breaks down the main event. Champ Kamaru Usman surrounds himself with his team. Merab Dvalishvili sees his star rise. Jose Aldo talks rhythm; Leon Edward stays sharp for Mother England.

Champ Kamaru Usman flies in style. Leon Edwards eyeballs American groceries. Luke Rockhold recovers from a road trip. Paulo Costa is motivated by his opponent.

Leon Edwards takes a swing with his team. Champ Kamaru Usman gets energy from his brother, a fellow Ultimate Fighter. Alexandr Romanov gets gritty in training. Jose Aldo and Paulo Costa travel from Brazil. Luke Rockhold acclimates Park City-style.

Luke Rockhold supports teammate Chito Vera’s main event in San Diego. Champ Kamaru Usman hones his skills, then watches the fights with his training partner, Justin Gaethje. Leon Edwards lands in Salt Lake.