Georgia State at West Virginia (11 a.m. Saturday): After starting its conference schedule with a road loss to Oklahoma last week, West Virginia (1-1, 0-1 Big 12) must regroup at home against Georgia State (0-2). Things won’t get easier for the Mountaineers, whose next Big 12 game will be against Oklahoma State in two weeks, after they play Maryland next week.Tulsa at No. 14 Oklahoma (11 a.m. Saturday, ESPN2): The Sooners (2-0, 1-0 Big 12) are still finding their way on offense, but the team’s defense has allowed just one score in two games. Against Tulsa (1-1), watch for another defensive struggle, which isn’t typical for a Bob Stoops team. Since Stoops took over at Oklahoma, the Sooners are 6-0 against Tulsa, with the closest game being 31-15 (2005). In 2011, Oklahoma won 47-14. The quarterback spot is still shaky for the Sooners, with veteran backup Blake Bell taking over for injured Trevor Knight. While Knight, pulled out of last week’s game, has been a threat on the ground, he’s thrown for just 205 yards and four touchdowns with three interceptions in two games. Iowa at Iowa State (5 p.m. Saturday, Fox Sports 1): It’s the annual battle for the Cy-Hawk Trophy. In the last 15 meetings, the game has featured an AP-ranked team just five times — and it’s always been Iowa. Still, the rivalry seems to produce exciting finishes, including two straight three-point Iowa State wins. The Cyclones, who get the home-field advantage, won 44-41 in 2011 and 9-6 on the road last year. Massachusetts at Kansas State (6 p.m. Saturday): After starting the season with a stunning home loss to North Dakota State, Kansas State bounced back with a 48-27 win against Louisiana-Lafayette. The Wildcats (1-1) should take care of UMass (0-2) to pick up momentum heading into next week’s Big 12 opener at Texas. But after losing to an FCS team in Week 1, an upset against any team is possible. Kansas at Rice (6:30 p.m. Saturday, CBS Sports): Rice (0-1) may have lost its only game so far this year, a 52-31 defeat at No. 6 Texas A&M, but the Owls showed offensive potential. Rice ran for 306 yards against the Aggies. Kansas has also played just one game so far this season, an easy win against South Dakota. Topping Rice on the road will be a much bigger challenge for the Jayhawks (1-0), who lost their final 11 games last season after starting with a win. Lamar at No. 12 Oklahoma State (6:30 p.m. Saturday, FSSW): After then-No. 24 ranked TCU lost to Texas Tech on Thursday night, the Big 12 could have just three ranked teams next week: the Sooners, Baylor (which is off this week), and Oklahoma State. That leaves the state of Oklahoma defending the Big 12’s national poll pride this week. Don’t expect the Cowboys (2-0) to have a letdown against Lamar (1-1), which lost to Louisiana Tech last week.