Now the Germany-born defenseman hopes to make Detroit Red Wings fans remember him for things he does on the ice.
Seider was visibly shocked when the Red Wings chose him with their first-round selection (No. 6), as most experts predicted he wouldn't go in the first 20 picks.
"It was really surprising to me, and everyone in Germany was so happy and excited for me," Seider said at Detroit's development camp in June. "But now I'm here, and I don't have to look back at that. I can look forward at the rest of my career. It's going to be fun."
Red Wings general manager Steve Yzerman had seen some of the mock drafts but wasn't worried about anyone's opinion outside his scouting staff.
"He has excellent hockey sense, he's obviously a big kid at 6-foot-3, and we thought he was one of the best defensemen in the draft," Yzerman said. "We were picking at No. 6 and No. 35, and we didn't think he would be there at No. 35. We're excited to have him."
Seider only turned 18 in April, but has spent a lot of time playing above his age group. He has played 47 games, including 14 in the postseason, for Adler Mannheim of the Deutsche Eishockey Liga -- Germany's top league -- and represented Germany at the 2019 World Championship.
"I think playing at that level has helped me a lot, just seeing how those guys prepare every day at practice," he said. "We've got a lot of guys who have won a Stanley Cup in our league, so it is pretty competitive. I think that's a big advantage for my game."