![NHL Public Relations on Twitter: "@NHL New this season, all unsuccessful Coach's Challenges will result in a penalty. Teams may initiate a challenge on appropriate plays at any time except the final NHL Public Relations on Twitter: "@NHL New this season, all unsuccessful Coach's Challenges will result in a penalty. Teams may initiate a challenge on appropriate plays at any time except the final](https://pbs.twimg.com/media/EE7vDqYXsAIXCst.jpg)
NHL Public Relations on Twitter: "@NHL New this season, all unsuccessful Coach's Challenges will result in a penalty. Teams may initiate a challenge on appropriate plays at any time except the final
![NHL Public Relations on Twitter: "@NHL New this season, all unsuccessful Coach's Challenges will result in a penalty. Teams may initiate a challenge on appropriate plays at any time except the final NHL Public Relations on Twitter: "@NHL New this season, all unsuccessful Coach's Challenges will result in a penalty. Teams may initiate a challenge on appropriate plays at any time except the final](https://pbs.twimg.com/media/EE7w34_WsAAmvmj.jpg)
NHL Public Relations on Twitter: "@NHL New this season, all unsuccessful Coach's Challenges will result in a penalty. Teams may initiate a challenge on appropriate plays at any time except the final
![NHL playoff scores 2016: Offside coaches challenge a broken rule after controversial weekend - SBNation.com NHL playoff scores 2016: Offside coaches challenge a broken rule after controversial weekend - SBNation.com](https://cdn.vox-cdn.com/thumbor/AI4wn1ClKb0zeb_sx_qknIEywas=/0x178:3111x2252/1400x1400/filters:focal(0x178:3111x2252):format(jpeg)/cdn.vox-cdn.com/uploads/chorus_image/image/49336907/GettyImages-522022654.0.jpg)
NHL playoff scores 2016: Offside coaches challenge a broken rule after controversial weekend - SBNation.com
![NHL rule forcing Ralph Krueger to think twice before using coach's challenge | Buffalo Sabres News | buffalonews.com NHL rule forcing Ralph Krueger to think twice before using coach's challenge | Buffalo Sabres News | buffalonews.com](https://bloximages.chicago2.vip.townnews.com/buffalonews.com/content/tncms/assets/v3/editorial/6/b9/6b9c3794-b25f-5654-864d-7c6937c4eaa8/5ef213c30d200.image.jpg?crop=1600%2C900%2C0%2C45&resize=1600%2C900&order=crop%2Cresize)