There’s fears tomorrow’s UFC fight will become a “beer fest”, with fans able to buy full-strength beer from 6.30am.

Health experts are worried the full-strength alcohol will be served to the sell-out 14,000 crowd for seven hours at Perth Arena.

But Tourism Minister Paul Papalia says he is confident fight fans will do the right thing.

Camera Icon Fans turned out to see the official weigh in of Yoel Romero and Luke Rockhold. Credit: 7 News

“This is an event that starts at 7.30 in the morning and finishes at 2pm. I’m pretty comfortable it’s not going to be a beer fest,” he said.

Mr Papalia said he expects fans to be fired up at the contest, which is Perth’s UFC bout since the State Government overturned Colin Barnett’s ban on cage fighting.

Police will be on hand at the venue to watch Luke Rockhold take on Yoel Romero for the main event.

Camera Icon Police will be on hand for the event. Credit: 7 News

Former police minister Liza Harvey says the lengthy sale of full-strength beer is a recipe for trouble.

“You have to question what kind of market it is that wants to have beer served at seven o’clock in the morning,” she said.

While health experts say the seven-hour sale period is a few hours too many, Perth Arena says alcohol will be served responsibly.