Zadina, 22, skated in 74 games with the Red Wings in 2021-22 and recorded a career-high 24 points (10-14-24) and 10 penalty minutes. The 6-foot-197 pound forward ranked among the team leaders with 10 goals (10th), 14 assists (9th), four power play goals (6th), eight power play points (T5th) and 154 shots (6th). Originally selected by the Red Wings in the first round (sixth overall) of the 2018 NHL Entry Draft, Zadina has totaled 61 points (25-36-61) and 12 penalty minutes in 160 NHL games, while adding 51 points (25-26-51) and 26 penalty minutes in 80 appearances with the American Hockey League's Grand Rapids Griffins from 2018-20. Zadina also notched 14 points (8-6-14) and 18 penalty minutes in 17 games with HC Ocelari Trinec of the Czech Extraliga before returning to Detroit for the start of the 2020-21 NHL campaign.
Prior to being drafted by the Red Wings, Zadina spent the 2017-18 season with the Halifax Mooseheads of the Quebec Major Junior Hockey League, totaling 82 points (44-38-82) in 57 games to place seventh overall in league scoring. He also led QMJHL rookies in scoring and earned a spot on the QMJHL First All-Star Team and All-Rookie Team, while winning the Mike Bossy Trophy as the league's best professional prospect. Zadina also tied for the team lead in playoff scoring by collecting 12 points (5-7-12) in nine games. On the international circuit, the Pardubice, Czech Republic, native represented his country at the 2018 and 2019 IIHF World Junior Championships. At the 2018 tournament, Zadina led the Czechs with seven goals and eight points in seven games, earning a spot on the WJC All-Star Team. He previously won a gold medal at the 2016 Ivan Hlinka Memorial Tournament after posting a tournament-best seven points (5-2-7) in four games. Zadina made his professional debut with HC Pardubice in the top Czech professional league, contributing two points (1-1-2) over 27 games from 2015-17.