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NCAA Ice Hockey Rules Committee proposes changes to video review, hitting from behind - The Only Colors
Ice hockey - Wikipedia
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NHL announces rule changes for video review, coach's challenge
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Expect Little Impact for the No Timeouts After Icing the Puck Rule Change - All About The Jersey
The Play is Under Review: The NHL Coach's Challenge And Its Impact On The Game
NCAA Ice Hockey Rules Committee proposes changes to video review challenges | NCAA.com
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