The Ultimate Fighting Championship on Wednesday confirmed the final four bouts for its upcoming UFC 84 event scheduled for May 24 at the MGM Grand Garden Arena in Las Vegas.

The 11-bout fight card is headlined by B.J. Penn defending his UFC lightweight championship from former titleholder Sean Sherk.

Bouts officially confirmed on Wednesday include Rich Clementi, making a quick turn around having fought on the recent UFC 83 card in Montreal, facing Terry Etim, who hasn't fought since losing to Gleison Tibau last September.

Also announced were Yoshiyuki Yoshida vs. Jon Koppenhaver, Dong Hyun Kim vs. Jason Tan, and heavyweights Shane Carwin vs. Christian Wellisch.

Tickets for UFC 84, according to the promotion, are sold out. It will air live on pay-per-view in the United States.

Main Card Bouts: B.J. Penn vs. Sean Sherk; Lyoto Machida vs. Tito Ortiz; Keith Jardine vs. Wanderlei Silva; Thiago Silva vs. Antonio Mendes; Wilson Gouveia vs. Goran Reljic

Preliminary Bouts: Rameau Thierry Sokoudjou vs. Kazuhiro Nakamura; Yoshiyuki Yoshida vs. Jon Koppenhaver; Rousimar Palhares vs. Ivan Salaverry; Shane Carwin vs. Christian Wellisch; Dong-hyun Kim vs. Jason Tan; Terry Etim vs. Rich Clementi

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