He tested positive after playing just one game with the Zurich Lions of the Swiss National League back in October of 2020 and missed the rest of their season.
But, after showing up to the Minnesota Wild training camp and being placed on injured reserve on January 10th for an “upper-body injury,” it was clear that lingering issues impacted his performance at the tournament.
In an interview with Michael Russo of The Athletic in April, Rossi commented on how dire his health situation was at the time, “the doctors told me if I played one more game in the World Junior Championship, this could have ended completely different.