USA TODAY
Attention in college football turns to the Big Ten in Week 6. In just the second meeting of top five teams this season, No. 3 Iowa hosts No. 4 Penn State in a cross-division showdown that will shape the conference and College Football Playoff races.
The Hawkeyes have started with five wins on the strength of their defense that leads the nation in turnover margin and is second in scoring and seventh in yards allowed per game. The Nittany Lions defense might not statistically stack up to its opponent, but they're plenty stingy, setting the stage for what should be a classic, low-scoring Big Ten matchup.