The NHL and NHL Players’ Association are investigating a gap in protocol which resulted in Arizona Coyotes defenseman Juuso Valimaki lingering in a Dallas hospital for hours without care last month with a severe facial injury after taking a 93 mph slap shot to the mouth against the Stars. Valimaki, 25, was transported to a Dallas hospital by ambulance from American Airlines Center after an undeflected point shot from countryman Jani Hakanpaa drilled him in the face on Nov. 14. Sources told Daily Faceoff that Valimaki was dropped off in the emergency room, like any other patient, and left to...