Joe Lauzon vs. Mac Danzig in the Works for UFC on Fox 9

UFC on Fox 9 went from empty to big to huge within a 24-hour period, with the UFC now announcing a new matchup between popular lightweights Joe Lauzon and Mac Danzig on Twitter.

"

Lightweight fan favorites @MacDanzigMMA and @JoeLauzon have verbally agreed to fight at @UFConFOX December 14 in Sacramento

— UFC (@ufc) September 18, 2013"

That adds yet another intriguing fight to a booming card.

Lauzon has fallen on hard times of late, and is sitting at 1-3 in his last four fights, including an ugly knockout loss to current champion Anthony Pettis, a bloodbath to Jim Miller and a recent shellacking from a massive underdog, Michael Johnson.

Still, with twelve post-fight bonuses (one Knockout of the Night, six Submissions of the Night and five Fights of the Night) and numerous awards for 2012 Fight of the Year, Lauzon remains hyper-popular.

Danzig has been struggling to put up wins throughout his UFC tenure. In spite of winning The Ultimate Fighter season 6, he has been constantly on the short-list when it comes to UFC cuts, and owns an ugly 5-7 UFC record which hasn't seen more than one win in a row since 2008.

Still, with a penchant for sweet finishes and collecting Fight of the Night bonuses while losing (three to date), he has still remained somebody to watch.

Within the last 24 hours, several big fights have been attached to the UFC's long-awaited return to Sacramento, California. 

The card will be headlined by a lightweight title bout between current champion Anthony "Showtime" Pettis and former Strikeforce champion Josh Thomson.

It will also be home to a possible bantamweight top contender bout between Michael McDonald and Urijah Faber, the flyweight debut of Scott Jorgensen opposite Ian McCall and a featherweight tilt between Chad Mendes and Nik Lentz.

On their own, these five fights combine for an amazing card. Keep an eye on Bleacher Report for more information on the card as it becomes available.