Slow-motion video is creating more confusion when it comes to goaltender interference reviews, according to Colin Campbell, the NHL’s senior vice-president of hockey operations.

“One thing we have determined is that it’s as clear as mud sometimes,” Campbell said in an interview with Bob McCown and John Shannon on Prime Time Sports Tuesday. “The one thing that all sports are dealing with is that when you put it in super slow-motion, you do see different things.

“I think (with) super-high (definition) and all of these angles, you start to question (things).”

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