A back injury suffered in training has forced Affliction transplant Dan Lauzon off his scheduled lightweight bout against Rafaello Oliveira at UFC 103. The fight was set for September 19 from the American Airlines Center in Dallas, Texas. News of the injury cames via MMAWeekly.com. Both Lauzon and Oliveira's contracts were transferred to the UFC following the demise of Afflcition's MMA operations as first reported here at FiveKnuckles.com.

Lauzon is currently riding an 8-fight win streak, with his most recent win coming against Bobby Green at Affliction: "Day of Reckoning" in January. Prior to his hot streak, he lost two straight, including a loss in his previous stint in the UFC against Spencer Fisher at UFC 64. The World Championship Fighting veteran sports a superb MMA record of 12-2, with 6 wins by TKO or KO and 6 by submission.

Oliveira (9-1) will be looking for his fourth straight win when he makes his octagon debut. He most recently defeated John Mahlow at XFC 8: "Regional Conflict" in April. The Brazilian jui-jitsu ace with heavy hands currently trains with UFC lightweight champion BJ Penn and is highly touted among MMA insiders.

UFC 103 will be headlined by a 195-pound catch weight bout between Rich Franklin and Vitor Belfort. Also slated for the main card is a heavyweight bout between former PRIDE and K-1 superstar Mirko "Cro Cop" Filipovic and surging heavyweight prospect Junior Dos Santos. Martin Kampmann will also battle it out on the card against Mike Swick to determine the UFC's number one welterweight contender.

Make sure to check back with us the day of the event for free, live, round-by-round coverage of UFC 103 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!