After struggling against Missouri, the Nebraska defense will face a big challenge from Oklahoma State this Saturday. The Cowboys rank second in the Big 12 with 234.5 rushing yards per game.

With half of the season to go, Nebraska coach Bill Callahan sees this game as an important test.

“I think these next six games will determine a lot of things as to where we can go and how much improvement we can make over the long haul.”

“Usually, as the season goes on you continue to improve in areas.” says Callahan. “As long as you see that, I’m pleased. If it could register into a few more wins, I’d be a lot happier. At the split, it’s not where I want to be.”

Nebraska had an hour-and-a-half practice Thursday in shoulder pads and shorts at Memorial Stadium.