Ultimate Fighting Championship (UFC) aired its traditional "Countdown" preview show for UFC 143: "Diaz vs. Condit" on Tuesday night, featuring a behind-the-scenes look as former Strikeforce Welterweight Champion Nick Diaz prepares to fight fellow division number one contender Carlos Condit for the Interim title on Saturday night (Feb. 4, 2012) at the Mandalay Bay Events Center in Las Vegas, Nevada.

To check out immediate reactions to the 30-minute special be sure to check out our live UFC 143 "Countdown" discussion thread right here.

"Countdown to UFC 143" also featured a closer look at the 170-pound match up between former division number one contender Josh Koscheck and venerable up-and-comer Mike Pierce.

Remember that MMAmania.com will provide LIVE round-by-round, blow-by-blow coverage of the main card action on fight night (Sat., Feb. 4), which is slated to air at 10 p.m. ET on pay-per-view. The latest quick updates of the preliminary card action will begin to flow earlier than that around 7 p.m. ET.

Props to Iron Forges Iron for the video. For more on UFC 143: "Diaz vs. Condit" be sure to hit up our event archive right here.