 On July 21, 2017, Brust was signed to a one-year deal by HC Fribourg-Gottéron of the National League (NL) as an emergency plan to replace Reto Berra who went back to the NHL without playing a single minute for Fribourg.In the 2017–18 season, Brust claimed the starting duties with Fribourg, making 38 appearances in posting a 2.29 goals against average with a .926 save percentage.At the conclusion of his contract in Switzerland, Brust returned to the KHL, agreeing to terms with Chinese participant, Kunlun Red Star on October 12, 2018.