Penn State showed little sign of having taken so much time off before stepping onto the mat again.

As wrestling season continues, there is little change in the top half of the weekly power rankings. See what's happening in the wrestling world with the Week 5's Power Rankings:

1 – Oklahoma State: The Cowboys got some rest after two days of record-setting wrestling at the Southern Scuffle, Jan. 1-2. Up next is No. 4 Iowa, who brings an unbeaten dual record and a Midlands Championship to Stillwater this Sunday. The Hawkeyes have won three straight in the series, including last season’s November dual on Iowa’s football field. Oklahoma State has nine wrestlers ranked inside the top eight.

We want to see YOU in GIA next Sunday (1/15) when your top-ranked Cowboys host No. 3 Iowa!



: https://t.co/iehcFC82HX pic.twitter.com/B03yGIMtvt — OSU Cowboy Wrestling (@CowboyWrestling) January 8, 2017

2 – Penn State: The Nittany Lions showed very little rust after a month off, whipping Minnesota last Friday and beating a good Nebraska team in Lincoln on Sunday. Seven PSU starters are listed among the top eight, Zain Retherford (149) and Jason Nolf (157) each maintain the top spot with third-ranked Bo Nickal winning a big battle with Nebraska’s second-ranked T.J. Dudley last Sunday. PSU (6-0) hosts Rutgers this Friday with a date at Iowa set for Jan. 20.

3 – Ohio State: The Buckeyes (6-0) beat a good Wisconsin team in Madison – without Olympian Kyle Snyder – last Friday and host Illinois this Sunday. Four OSU starters remain perfect this season – Nathan Tomasello (125), Micah Jordan (149), Bo Jordan (165), and Snyder (285). Rookies Luke Pletcher (133) and Kolin Moore (197) are a combined 35-4 and 2016 national champion Myles Martin (184) is 18-3.

4 – Iowa: Iowa routed Michigan and Michigan State last weekend and visit old friend Oklahoma State this Sunday. Thomas Gilman (125) continues to roll, Corey Clark (133) and Sam Stoll (285) are back in the lineup; Brandon Sorensen (149) and rookie Michael Kemerer (157) remain unbeaten; and Alex Meyer (174) and Sammy Brooks (184) have plenty of experience. This team will have a say over the next two months.

5 – Virginia Tech: The Hokies whipped Princeton and North Carolina last weekend and will be the favorites at this weekend’s Virginia Duals in Hampton, Va. Kevin Dresser’s squad was the favorite at the 2016 Virginia Duals, but dropped a match to Iowa State.

6 – Nebraska: Mark Manning’s Huskers suffered their first loss of the season, falling to Penn State last Sunday in Lincoln just over a week after challenging Iowa at the Midlands Championships. NU remains at home this weekend, hosting Wisconsin Friday and Michigan on Sunday at the Devaney Center.

7 – Lehigh – Lehigh’s lone dual loss in 2016-17 came to Penn State. The Mountain Hawks wrestle at Navy on Friday and at American on Saturday. LU finishes January with duals against Cornell (Jan. 21), Virginia Tech (Jan. 27), and Michigan (Jan. 29).

8 – Missouri: Missouri (5-2) showed its tournament strength by finishing second at the Southern Scuffle. But less than a week later, the Tigers sat a handful of starters and fell at Oklahoma. There is no rest for Brian Smith and Co. as the Tigers wrestle at Buffalo on Thursday and at Cornell on Saturday.

FINAL: Oklahoma defeats #Mizzou, 24-18.#Mizzou will next wrestle at Buffalo in a MAC dual on Jan. 8. pic.twitter.com/Xw0QNFvsm6 — #TigerStyle (@MizzouWrestling) January 8, 2017

Knocking on the door – Minnesota, Cornell, Illinois, Michigan, Wisconsin, South Dakota State, Arizona State, Northern Iowa, Stanford