General rule of thumb: Don’t ask Coach K about Kyrie Irving’s toe and his plans for the future on the heels of Duke’s loss, its worst as a No. 1 seed, to Arizona in the NCAA tournament Thursday night.

Irving, playing in the tournament after missing 3 1/2 months of his freshman season to injury,

Mike Krzyzewski interrupted a reporter who began to inquire about Irving’s future: “Let's not talk about that. I mean, that's uncalled for right now. Let's just talk about the game and the beautiful way that Arizona played and not future decisions. You can call my office later, you know — how would we do that, Ken? You think I just grabbed him and talked to him about that? I just hugged him because he's crying. I'm not talking to him about him going pro. Those things will happen in due course.”

Maybe the timing left something to be desired, but the subject isn’t going away, not with Irving rated a top NBA draft prospect. The day before Duke’s loss, Irving verbally worked through the issue on “The Dan Patrick Show.”

“Right now there is no reason why I wouldn’t come back [to Duke],” Irving said. “I love everything about Duke.”

Then he told Patrick he wasn’t thinking about it just yet. “Honestly, I’m not sure right now.”