I looked at it a few times and it looked like he rebounded the ball and OSU #55 crashed into Paul's body when they were both in the air, knocking Paul off balance... Paul came down with his left foot first, making that his pivot foot. His right foot then came down and as he was stumbling backward he lifted his pivot foot. Just as he was putting it down again the same Ohio State player reached out and ripped Paul's arm off the ball and he lost possession and started bobbling the ball. It may have been a travel by a fraction of a second, but it was close and I think it would have been hard for a ref to determine in real time whether Paul had possession at the time, and whether his arm was pulled off the ball before or after the pivot foot landed.. But if traveling on Paul should have been called, so should a foul or two on OSU.