Big Ten Power Rankings Week 13: Nebraska Slips, Northwestern RisesBy Caleb Calhoun | Nov 26, 2014PrevPrev11 of 15NextNextNov 22, 2014; Lincoln, NE, USA; Nebraska Cornhuskers running back Ameer Abdullah (8) waves after losing to the Minnesota Golden Gophers in the second half at Memorial Stadium. Minnesota won 28-24. Mandatory Credit: Bruce Thorson-USA TODAY SportsNextHome/Big Ten