Made his professional debut at age 17 with Mountfield HK (Czech Extraliga) during the 2014-15 season 

Participated in the 2015 U18 World Championships (Czechia) 

Represented Czechia in the 2016 and 2017 World Junior Hockey Championships 

Drafted 53rd overall by the Detroit Red Wings in the 2016 NHL Entry Draft 

Won the Calder Cup with the Grand Rapids Griffins during the 2016-17 season 

Named to the AHL All-Rookie Team for the 2017-18 AHL season 

Made his NHL debut on Oct. 4, 2018 

Named to the 2019 World Championships All-Star Team 

Named the Best Defenceman at the 2019 World Championships 

Won a Bronze medal at the 2022 World Championships