Heynen is a product of EHC Visp's organization and has been part of the Swiss League team for the most part of his career. In 21 games for them this season, the captain has recorded two goals and four assists.
Wiedmer, for his part, had an option in his contract for the 2019-20 season. The team now opted to activate it. In 24 games for Visp, the 30-year-old defender has recorded one goal and seven assists.