What happened: The Hronek item lands as Boston keeps adjusting its roster with camp approaching. The Bruins signed Matthew Poitras to a one-year, two-way deal on Sept. 17 and extended Fraser Minten for seven years at a $7.2 million cap hit on Sept. 8.

Why it matters: Another defense pursuit would signal Boston is still probing upgrades rather than treating its current group as finished. That fits the Bruins' earlier survey of free-agent targets and trade options before July 1 and keeps focus on how much more reshaping the club wants before preseason games start.

What to watch: The next signal is whether Boston's interest turns into active trade talks as preseason nears. Any follow-through would show how aggressively the Bruins still want to alter the roster before opening night.