VIDEO: Grayson Allen goes hard to the rim, Coach K is amped

Who predicted Grayson Allen being the go-to guy for Duke?

Well, that's exactly what's happening in Monday's national championship game against Wisconsin. The freshman guard, who didn't even play in the initial game between these two schools in December, is setting the bar pretty high for everyone else. 

On this play, Allen drove to the rim for the hoop-and-harm.

Needless to say, Duke's Mike Krzyzewski is showing a lot more emotion than he usually does.