UFC heavyweight champion Brock Lesnar and interim champion Frank Mir will fight on May 23 at UFC 98 to determine the undisputed UFC heavyweight champion.
UFC president Dana White confirmed the fight will take place May in Las Vegas on an appearance Wednesday on the WAAF's Hill Man Morning Show in Boston.
The co-headliner for UFC 98 will be the long-delayed welterweight bout between Matt Hughes and Matt Serra.
Making his UFC debut in only his second professional MMA fight, Lesnar lost to Mir at UFC 81 "Breaking Point" on Feb. 2, 2008. Lesnar was caught with a kneebar after dominating the entire fight with powerful ground and pound.
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