Right wing who was selected 25th overall in the 2014 NHL Draft by the Boston Bruins. He became a top prospect in the 2014 draft after excelling with Sodertalje SK in the Swedish league.
During the 2011-12 season, while playing with AZ Havirov, he led the Czech U18 league in both goals and points, with 41 and 68 respectively.
He scored his first and second NHL goals in the same game on January 10, 2015 as the Bruins defeated the Philadelphia Flyers 3-1.
He was trained and motivated to play hockey by his father, who died after a long battle with cancer. He was previously in a relationship with Adela Zahrajova.
He became teammates with versatile center Patrice Bergeron on the Bruins in 2014.