UFC sent out the following press release to FightLine.com today:
THE ULTIMATE FIGHTING CHAMPIONSHIP® ANNOUNCES UFC 98: LESNAR vs. MIR 2 For the World Heavyweight Championship

SATURDAY, MAY 23, 2009

Live from the MGM Grand Garden Arena – Tickets on Sale Saturday, March 7 at 10am PT

Las Vegas, NV (USA) – Long considered the most prestigious title in mixed martial arts, the UFC® Heavyweight Championship currently rests in the hands of two men – Champion Brock Lesnar and interim belt holder Frank Mir. On Saturday, May 23rd, at the MGM Grand Garden Arena in Las Vegas, Nevada, Lesnar and Mir will meet to not only determine an Undisputed UFC Heavyweight Champion, but to settle some very personal business they began in this same arena over a year ago.

"Brock Lesnar and Frank Mir put on one of the most intense one round fights I've ever seen at UFC 81," said UFC President Dana White, referring to Mir's submission victory over Lesnar in February of 2008. "But when it was over, both guys saw things very differently. Lesnar blamed his loss on inexperience and being too aggressive, while Mir saw his win as a triumph of his technique, something he says will happen every time they fight. On May 23rd, each fighter has his chance to prove his point, and while a lot has happened for these two since that first fight, I know the rematch is going to be just as intense as the first one, especially considering that the winner walks away as the UFC Heavyweight Champion."

Tickets for UFC 98: LESNAR VS. MIR 2 priced at $800, $600, $400, $250, $125 and $75, not including applicable service charges, go on sale Saturday, March 7 at 10 a.m. at all Las Vegas Ticketmaster locations (select Smith's Food and Drug Centers and Ritmo Latino). Ticket sales are limited to eight (per person. To charge by phone with a major credit card, call Ticketmaster at (800) 745-3000. Tickets also are available for purchase at www.ufc.com, www.mgmgrand.com or www.ticketmaster.com.

UFC® Fight Club™ members will have the opportunity to purchase tickets to this event Thursday, March 5 at 10 a.m. PT via the website ufc.com. A special Internet ticket pre-sale will be available to UFC newsletter subscribers Friday, March 6 starting at 10 a.m. PT. To access this presale, users must register for the UFC newsletter through ufc.com.

UFC 98: LESNAR vs. MIR 2 will be available live on pay-per-view on iN DEMAND, DIRECTV, DISH Network, TVN, Bell ExpressVu, Shaw Communications and Viewer's Choice Canada for a suggested retail price of $44.95 for standard definition or high-definition broadcasts (where available).