As a Bruins fan, I think the worst trade that ever happened in real life was the Florida Panthers trading for Matthew Tkatchuk. With the season we just had this season, the Bruins really had a great chance at winning it all. Unfortunately, we lined up against the Florida Panthers that were on a tear and were going to be a problem coming into the playoffs. Especially with the way the Panthers play hockey, it was the worst possible matchup that the Bruins could have gotten. That really defensive and physical play, along with an explosive counter attack was just something that we were not going to be able to contain in a 7 game series.
Against teams like the Maple Leafs or the Lightning, I think the Bruins had their number all season long. But the Panthers, and the way that series went down and even with Patrice Bergeron coming back into the lineup when we were playing fine, just does not sit well with me. And the last straw is the rumors of Linus Ullmark being hurt and not being able to move the way he wanted to and keeping him in net for the series when we have a capable goaltender like Swayman as a backup.

All in all, Tkatchuk and the Panthers played it perfectly against us and took advantage of our mistakes and mismanagement.