UFC on FOX 5: Mike Swick next fight set against Matt Brown in Seattle

That was "Quick."

Just hours after inking a four-fight contract extension with Ultimate Fighting Championship (UFC), Mike Swick has already reduced that commitment to three with a verbal agreement to sling leather with Matt Brown at the KeyArena in Seattle, Wash., on Dec. 8, 2012.

The world's leading mixed martial arts promotion announced the addition to the UFC on FOX 5: "Henderson vs. Diaz" fight card earlier this evening via its official Twitter.com account.

Swick triumphantly returned from a 2.5-year hiatus from the sport nursing several injuries and maladies, turning out the lights of DaMarques Johnson at UFC on Fox 4 earlier this month. It snapped a two-fight losing streak that dated back to 2009 and earned him a confidence-boosting, and likely incredibly helpful, "Knockout of the Night" bonus.

He'll look to string together back-to-back wins, and perhaps fight night bonuses, when he collides with "The Immortal," who himself is no stranger to exciting fights, but has yet to pad his pockets with a bonus in 13 career fights inside the Octagon.

That hasn't stopped him from winning impressively his last three trips to the eight-walled cage, stopping two opponents (Chris Cope and Luis Ramos) and out-pointing another, Stephen Thompson. In fact, after steering out of a three-fight losing skid, Brown has won four of his last five fights and is suddenly somewhat relevant again in the Welterweight division.

He'll try and maintain that position, and most likely improve it, with a big won over a name opponent like Swick.

UFC on FOX 5 (for now) is an absolutely stacked event, featuring a Lightweight title fight between reigning 155-pound champion Ben Henderson against division number one contender Nate Diaz. In addition, Alexander Gustafsson will try to move to the head of the light heavyweight class when he tangles with former 205-pound champion Mauricio Rua, while B.J. Penn vs. Rory MacDonald will meet in a Welterweight scrap that pits the old opposite the new school.

That's not all.

To check out the latest UFC on Fox 5: "Henderson vs. Diaz" fight card and rumors click here.