What happened: Dylan Larkin has requested a trade from Detroit, according to a Sportsnet report by Friedman citing multiple sources. The report said Larkin, his agent and Detroit's front office did not comment publicly on the situation.

Why it matters: The request is significant because Larkin controls much of the process with a full no-trade clause this season and next. It also puts Detroit in a difficult offseason position around a top-line center and captain after another missed playoff push.

What to watch: Watch whether Larkin identifies preferred destinations before the NHL draft. Detroit can listen, but any deal would still require his approval.