Cardiff Devils sign defenceman Bryce Reddick from Aalborg Pirates and are set to add at least two more players before the season starts.
The Belfast Giants add experienced forward Dustin Johner to their roster for the forthcoming Elite League season.
Representatives from five sports meet to discuss a "unified approach" to the prevention and management of head injuries.
The Belfast Giants add forwards Jonathan Ferland and Sebastien Sylvestre to their squad for the 2017/18 campaign.
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Belfast Giants coach Adam Keefe is confident this week's new signings Darcy Murphy, Jonathan Ferland and Sebastien Sylvestre will boost the squad.