What happened: Washington got the extension done on the last day teams could still sign eight-year contracts before the new CBA took effect at midnight. Sourdif, 24, was approaching restricted free agency and entering his second season with the club.

Why it matters: The timing let the Capitals secure maximum term for a young forward instead of pushing the negotiation into a new rules environment. It also capped a busy stretch in Washington after Ryan Leonard's eight-year, $84 million extension a day earlier.

What to watch: The next question is where Sourdif fits once camp lines start to settle. Washington's remaining cap and roster moves will show how much of this young core is already locked in.