Halftime: Oregon 14, Arizona 10

TUCSON, Ariz. -- Just when it looked like Oregon was going to assert itself, Arizona rose up.

Oregon leads 14-10 at the break, and Arizona scored the final 10 points of the first half to take momentum into the locker room.

Turning point: Oregon had a first down on its 38 with 4:27 left before the half and a 14-0 lead. But quarterback Jeremiah Masoli, who'd been living on the edge much of the evening with his ball security, saw his pass tipped by Cam Nelson and intercepted by Sterling Lewis. The Wildcats drove for a touchdown and added a field goal as the first-half clock ran down, the turnover fueling a huge momentum shift.

Stat of the half: Anyone else surprised this is such a defensive struggle? Oregon has just 181 total yards; Arizona 206.

Best player in the half: Masoli's turnover was a critical turning point, but he also ran 14 yards for a TD and passed 9-yards for another. Both plays were improvisations. He's been held in check, but he's always just one play away from something big.

What Arizona needs to do, What Oregon needs to do: Neither team has run the ball well. The guess here is the team that runs better in the second half wins.