Report: UFC 170 ticket sales 'sluggish' for 'Rousey vs. McMann' at Mandalay Bay in Las Vegas, Nevada

Ultimate Fighting Championship (UFC) women's bantamweight titleholder Ronda Rousey is the biggest star the mixed martial arts (MMA) promotion has ever had, according to UFC President Dana White.

That said, she can't be expected to carry a major pay-per-view (PPV) event all by herself, which is probably why she's "concerned."

Joining her in the UFC 170 main event is fellow Olympian Sara McMann, who has the credentials to call herself the division's second-best fighter, but not the drawing power that comes with it, having appeared just once inside the Octagon as a "Prelims" fighter last April.

Not every female fight can have the kind of buzz enjoyed by "Rousey vs. Tate."

That said, the co-main event isn't doing her any favors, either, as fans don't seem to be in any big hurry to watch a world-class fighter like Daniel Cormier beat the brakes off a brash barista, who two weeks ago, was blowing the foam off a Venti latte.

The rest of the main card is good, but not great (see it here), which may explain some of the numbers provided by MMA Payout, who broke down the financials for tonight's big event, to see how they stack up against previous offerings.

Ticket prices were set lower than previous Vegas PPVs, which were held at the MGM Grand Garden Arena. Saturday's event will be held in the smaller Mandalay Bay Events Center.

The last event at the Mandalay Bay was the TUF 17 Finale from April 2013. That event drew slightly under 6,000 fans for $569,075. The last PPV at the Mandalay Bay was UFC 156: Aldo-Edgar, which drew 10,275 for a gate of $2.437 million.

A week prior to [UFC 170] 6,400 tickets had been sold.

Ticket sales have been "sluggish," according to the report, as seats are plentiful in both the upper and lower sections.

There is still plenty of time to fill some of the existing holes and White projects a two-million dollar gate, but the final tally of tickets sold/unsold -- as well as total comps -- won't be released by the Nevada State Athletic Commission (NSAC) until early next week.

Predictions?