More and more bouts are being added to the UFC 104 fight card. The most recent addition is a middleweight bout between longtime UFC veteran Jorge Rivera and fast rising middleweight prospect Rob Kimmons. MMAWeekly.com was the first to report the bout which was subsequently confirmed by FiveKnuckles.com.

Both Rivera and Kimmons will be fighting for the first time since signing new contracts with the UFC.

Rivera is coming off a gritty decision win over Nissen Osterneck at UFC fight night 18 in April and has now won 4 of his last 6 bouts. Rivera sports an even 5-5 record in 10 fights under the UFC banner, with his very first bout with the promotion coming at UFC 44 in September 2003. He has recorded impressive wins over the likes of Travis Lutter, David Loiseau, Dennis Hallman and Kendall Grove.

Kimmons most recently defeated Joe Vedepo also at UFN 18 in April, and is now 2-1 in three fights with the UFC. In previous UFC bouts, Kimmons suffered a loss against middleweight contender Dan Miller at UFN 15 and defeated Rob Yundt in his UFC debut at The Ultimate Fighter 7 finale last summer. The 28-year-old midwesterner and submission specialist is currently 22-4 in his MMA career, with 14 wins by submission and 5 by TKO.

The as of yet unannounced UFC 104 event is expected to take place on October 24 from the Staples Center in Los Angeles, CA. The event will be headlined by a light-heavyweight title bout between current champ Lyoto Machida and challenger Mauricio "Shogun" Rua. In the co-main event, heavyweights Shane Carwin and Cain Velasquez will battle for a heavyweight title shot.

Click here to head over to our events section for a look at the updated UFC 104 fight card in its entirety.

Make sure to check back with us the day of the event for free, live, round-by-round coverage of UFC 104 right here at FiveKnuckles.com! Join expert analyst Mike Williams as he takes you through the entire fight card blow-by-blow and then keep it right here for all the post-fight news and notes you can handle!