I am pretty sure Wissmann attended a Kings rookie camp in the past, alongside teammate Jonas Müller, when they were like 18 or 19 years old.
So it is not, that he has always flown completely under the radar, but he has developed very steadily since joining the pro team in Berlin and really took it to a new level this season, getting more responsibilities and ice time, and doing quite well.
It's nice to see him doing well with the national team. We really need our few talented defensemen (born in the mid to late 90s) to pan out if we want to have successful tournaments in the years to come. Not sure how long we can count on the Red Wings missing the playoffs, and Moritz Müller and Holzer are not getting any younger. So we will soon be really thin on defense again, unless the young(ish) guys really step up.