The Genève-Servette HC competes in a league know by what name prior to the 2017-2018 season?
National League (ice hockey) The National League (NL) is a professional ice hockey league in Switzerland. It is the top tier of the Swiss hockey league system and of the two-tier National League. Prior to the 2017–18 season, the league was officially called National League A.
HC Sierre-Anniviers HC Sierre-Anniviers is a professional ice hockey team, in Switzerland. It has been several times in the top Swiss hockey leagues National League A (NLA) and National League B (NLB) but is now playing in the Premier League.