Pic: UFC on FOX Sports 1 #1 poster first look for 'Shogun vs. Sonnen' on Aug. 17 in Boston

Ultimate Fighting Championship (UFC) today unveiled its first look at the upcoming poster for its UFC on FOX Sports 1 #1 event, which is set to take place at TD Garden in Boston, Mass., on Aug. 17, 2013.

"Shogun vs. Sonnen" will feature an impromptu light heavyweight match up pitting former division champion Mauricio Rua opposite ex-middleweight number one contender Chael Sonnen. The co-main event boats a monster heavyweight clash between top 10 bruisers Alistair Overeem vs. Travis Browne.

That's not all.

Longtime welterweight contender Thiago Alves takes on the "Immortal" Matt Brown, while The Ultimate Fighter (TUF) veterans Michael Johnson and Joe Lauzon hook 'em up for a spot in the 155-pound pecking order.

Keep in mind folks, this is all on free TV.

For more on UFC on FOX Sports 1 #1 visit our complete event archive here. And to check out the latest and greatest UFC on FOX Sports 1 #1: "Sonnen vs. Shogun" fight card and rumors click here.