What happened: The Panthers acquired Brady Tkachuk in a major NHL trade, adding one of the league's most physical top-six forwards. The move immediately reshapes the club's roster outlook entering the next NHL cycle.

Why it matters: Tkachuk brings scoring, edge and leadership to a lineup built for another playoff push. His contract status also matters: he has two years remaining before extension eligibility becomes a bigger roster-building question.

What to watch: Watch for the full roster fallout around the draft and free agency. Extension timing will become a key storyline once he is eligible next summer.