Dominik Volejnicek spent the majority of the last season with HC La Chaux-de-Fonds, recording 13 goals and ten assists in 40 regular-season games. He also appeared in eight playoff games for HCC (two goals, one assist).
Previously, Emilijus Krakauskas, Guillaume Anex, and Fabio Arnold had already been made available to HC Sierre. Volejnicek is thus the fourth player of the National League team to join Sierre for the start of the season.