MALMO, Sweden - Five things to know about the 2015 women's world hockey championship March 28 to April 4 in Malmo, Sweden.
— The United States and Canada have met in the final of all 15 world championships to date. Canada has won 10. The Americans took five of the last seven and are the defending champions.
— A two-referee system will be implemented at the women's world championship for the first time in Malmo.
— Canadian goaltender Genevieve Lacasse and defenceman Tara Watchorn are Boston Blades teammates of five American players including captain Meghan Duggan. They won this year's Clarkson Cup, which is the Canadian Women's Hockey League championship. Canadian goaltenders Emerance Maschmeyer (Harvard), Ann-Renee Desbiens (Wisconsin) and defenceman Brigette Lacquette (Minnesota-Duluth) each have a college teammate on the U.S. roster.
— Goaltenders Florence Schelling (Switzerland) and Jennifer Harss (Germany) play in men's pro leagues in their respective countries. Schelling was named top goaltender in the women's Olympic tournament. Finland's star goaltender and workhorse Noora Raty will not play at the world championship because of an injury.
— Malmo was the host city of the 2014 world junior men's hockey championship, in which Canada finished fourth. Malmo is linked by a 12-kilometre bridge to Copenhagen, Denmark.