New hockey rule: If you want to get into the groove before a serious game, don’t dance.

Nashville Predators defenseman P.K. Subban.

That, apparently, is the hockey gospel according to NBC hockey analyst Mike Milbury.

Milbury took umbrage Friday night to Nashville Predators D-man P.K. Subban dancing during warm-ups before the Preds’ Stanley Cup Playoffs game against the St. Louis Blues.

He called Subban a clown.

“I know it’s a new day and age and everybody wants to be on Instagram or Twitter,” Milbury said on a pre-game show before the Predators-Blues tilt. “But you’ve got to keep focus. This is a tough game. When I see this I start to think maybe (Predators Head Coach) Peter Laviolette ought to give him a rap on the head and say, ‘Hey, P.K., focus in, we’ve got a game tonight and you don’t have to be a clown out there.'”

Milbury,  the astute hockey mind who, as general manager of the New York Islanders, traded away goalie Roberto Loungo,  defenseman Zdeno Chara, signed All-World bust Alexei Yashin to a $90 million contract and took goalie Rick DiPietro with the first overall pick in the 2000 NHL Draft, added that Subban has “been a clown in the past and we’ve seen him act like a clown but when he’s serious and focused he’s one hell of a player.”

So, Mike, a brother can’t do a little dance in warm-up? I wonder what Jeremy Roenick, your fellow NBC hockey analyst might have said if he was sitting next to you Friday night instead of Keith Jones?

And it’s not like Subban was dancing  during a game, like former Philadelphia Flyers defenseman Andre Dupont did in the game that clinched the Stanley Cup for the orange and black against the Boston Bruins in 1974. Few people complained about “The Dupont Shuffle.”

Former NHL forward Alex Kovalev was known to break out into a moonwalk before, during, and after games.

Needless to say, Milbury’s rant didn’t go down too well on social media.

Yo, Mike, how’s this for busting a move on ice?

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