2008-09: Lukas Sedlak scored 12 goals with 17 assists and 14 PMs in 44 games for Ceske Budejovice's U18 team in his native Czech Republic. He was scoreless in four playoff games with 4 PMs.
2009-10: Sedlak made his Czech junior debut in fine form, putting up 4 goals and 8 assists in 11 games for the Ceske Budejovice U20 club. Sedlak was the leading scorer for Budejovice's U18 team, scoring 29 goals with 27 assists in 37 games and finishing with 76 PMs. He represented the Czech Republic at the 2010 U17 World Hockey Challenge and had 1 goal with 1 assist in five games.
2010-11: Sedlak played a full season with Ceske Budejovice's U20 team and was an assistant captain for the Czech Republic team at the 2011 U18 World Junior Championship. He notched 14 goals and 13 assists in 47 games for Budejovice and was the second leading goal-scorer with 3 goals in five games for the Czech Republic at the junior tournament. He also had an assist and was -3 on a team that finished eighth in the ten-team tournament. Sedlak was selected by Chicoutimi in the first round (14th overall) of the 2011 CHL Import Draft.
2011-12: Sedlak put up 45 points with the QMJHL’s Chicoutimi Sagueneens, favoring the assist column with 28. In the playoffs he had a much smaller impact with only eight points in 18 games and a -3 rating. Like he has since he was 16, he appeared in a lot of international tournaments, but for first time was a non-factor. He set up one goal in 16 international games and finished the tournaments with a combined plus/minus of -6.
Sedlak is the kind of player who isn’t going to get the recognition for how well he plays. He does all the little things right, but besides a strong shot doesn’t bring too much more of significance to the table. He plays good in his own zone, but has a lot of room to improve on the offensive side of the game.
Sedlak is a good two-way forward who will improve his offensive game in Chicoutimi. He will be great in the face-off circle and on the penalty kill, but isn’t going to win any scoring titles. He’ll probably spend most of his career underappreciated on the third line.