Week 13 of NCAA wrestling saw significant team and individual upsets that will give our rankers plenty of work to do. With more than 30 upsets and double-digit top tens going down, it really was a wild one. Here are this weekend's biggest upset stories.

What can you expect when Iowa (8-0) faces Oklahoma State (8-0) on Saturday, February 12?The unique venue should come to mind. It doesn’t get much more innovative and creative than a dual on Globe Life Field in Arlington, Texas. Unless, of course, you hosted a November dual on a football field in Iowa.

Both the ACC and Big Ten have no shortage of top 184-pounders, and we'll finally get to see them all in one bracket. Throw in the beasts from the remaining conferences, and baby, you got a stew goin. 

The #3 ranked Oklahoma State Cowboys are making their way up north to Cedar Falls looking for redemption one year after being upset by Northern Iowa. Always scrappy, the Panthers just made their way into the top 20 dual rankings setting up a big dual between Big 12 rivals.

Oklahoma State's roster has four All-Americans and a number of young, rising talents. This season hasn't always been smooth for the Cowboys, but do they have the firepower to win a top-four trophy at NCAAs?

Iowa and Oklahoma State have been two of the most dominant wrestling programs in the history of the sport, and their dual meet rivalry is one of the staples of the season. When they meet on Sunday night, Iowa will be favored in every single match which rarely, if ever, has happened.

Oklahoma State will be favored in seven of 10 matches on paper this Saturday night when they take on Wyoming, but Mark Branch's Cowboys have given John Smith's squad headaches in the past, and they have a team that could challenge Oklahoma State in this dual. Here are the biggest reasons to watch this all-Cowboy showdown.