Two welterweight bouts featuring several prospects for the UFC's 170 pound division have been added to the undercard of UFC 84 scheduled for May 24 in Las Vegas, UFC.com's Thomas Gerbasi is reporting.

The bouts added include season six "Ultimate Fighter" reality TV show alumnus Jon Koppenhaver taking on Yoshiyuki Yoshida and Jason Tan squaring off against Korean fighter Dong Hyun Kim. 

Koppenhaver last fought for the UFC during the live season finale of TUF 6 on December 8. He recorded a third round TKO over Jared Rollins in a fight that was discussed as a possible fight of the year candidate by several pundits. 

Yoshida, who has never fought in the UFC before, has a lifetime pro MMA record of 9-2, according to Sherdog.com's Fight Finder. He has competed for both the SHOOTO and Cage Force promotions.

Tan, 5-2, according to Sherdog, made his UFC debut at UFC 72 where he suffered a first round knockout loss against Marcus Davis last June. He rebounded with a unanimous decision victory over Alexandre Izidro at Cage Gladiators 4 this past August.

Tan's opponent, Kim, will be making his UFC debut on the show. According to the UFC's website, he sports a lifetime MMA record of 9-1-1 and most recently fought to a win and a draw in two fights against Hidehiko Hasegawa in the DEEP promotion. 

With the addition of the two welterweight fights, UFC 84 is now expected to feature 11 fights on the card. The entire rumored card is as follows:

• B.J. Penn vs. Sean Sherk for the UFC lightweight title
• Lyoto Machida vs. Tito Ortiz
  
• Keith Jardine vs. Wanderlei Silva
• Rameau Thierry Sokoudjou vs. Kazuhiro Nakamura
  
• Goran Reljic vs. Wilson Gouveia
• Shane Carwin vs. Christian Wellisch
  
• Thiago Silva vs. Antonio Mendes 
  
• Jon Koppenhaver vs. Yoshiyuki Yoshida
• Terry Etim vs. Jeremy Stephens
  
• Rousimar Palhares vs. Ivan Salaverry
  
• Dong-hyun Kim vs. Jason Tan

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Sam Caplan

Lead Writer/Editor - ProElite.com

SamCaplan.ProElite.com