New NHL rules forcing coaches to think twice before challenging plays | Hockey | Sports | The Telegram
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NHL changes for 2015-16 season: 3-on-3 OT, coach's challenge, $71.4 million salary cap ceiling, new face-off rule - New York Daily News
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NHL rule forcing Ralph Krueger to think twice before using coach's challenge | Buffalo Sabres News | buffalonews.com
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NHL coaches challenge goalie interference in droves — so should they be penalized when they get it wrong? | National Post
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