Sam Darnold matched his career high with four touchdown passes, and the undefeated Minnesota Vikings used another dominant performance on defense to trounce C.J. Stroud and the Houston Texans 34-7 on Sunday.

Has your opinion of the Big Ten changed after four weeks of college football? Ohio State, Oregon, Michigan and Penn State were top dogs at the outset of the season and that's mostly unchanged, but Illinois has launched itself into the conversation and the Iowa Hawkeyes might have something to say after a dominant performance in Minnesota.

With Week 5 of the college football season upon us, which teams are the leading contenders at the top of the Big Sky, and which teams are in the cellar? To update you on where each team stands, take a look at our power rankings below.

Kaleb Johnson rushed for a career-high 206 yards and three touchdowns, with two scores in a dominant third quarter that propelled Iowa past Minnesota for a 31-14 victory that gave the Floyd of Rosedale bronze pig trophy back to the Hawkeyes.

Our college football experts predict, pick and preview the Iowa Hawkeyes vs. Minnesota Golden Gophers game, with kickoff time, TV channel and spread.