PITTSBURGH — A year into the job, Pittsburgh Penguins coach Mike Sullivan’s daily message to his team has not changed. Just as he did when he took over an underachieving group last December, Sullivan wants the Penguins to “play the right way.”

Play smart defensively. Push it up the ice. Don’t get caught up trying to make the fancy play. Just take the shot. Lots of them preferably. Repeat as necessary.

At the moment, there may be no team in the NHL doing it as well as the defending Stanley Cup champions.

Sidney Crosby left briefly after taking a stick to the face then returned to pick up his NHL-leading 21st goal and the Penguins crushed the Arizona Coyotes 7-0 on Monday night for their sixth straight victory.

Pittsburgh has outscored the opposition 36-14 during the run, including Crosby’s latest highlight reel score when he swatted a puck out of midair to make it 5-0 in the second period.

“I mean when you’re winning, it’s fun,” Crosby said. “I think we’ve done a good job of limiting other team’s chances. When you’re doing that, you’re creating offense and giving yourself a chance, so I think we’ve done a good job at that.”

Bryan Rust, Scott Wilson, Trevor Daley, Phil Kessel, Nick Bonino and Justin Schultz also scored for the Penguins, and 13 players recorded at least one point. Matt Murray finished with 32 saves while picking up his third career shutout as Pittsburgh pulled into a first-place tie with the New York Rangers atop the crowded Metropolitan Division.

“Sid’s been on a tear and has been playing inspired hockey and I think Geno’s line has very quietly been productive,” Sullivan said. “When you get the third and fourth lines doing what they do ... we’re finding offense throughout our lineup and that’s helping us win games.”

Arizona’s Mike Smith, the lone bright spot for a team with the fewest victories in the league, stopped 18 of 22 shots before being pulled midway through the second period. The Coyotes are 1-4-3 in their last eight.

“There’s a standard you have to play to in the NHL whether you’re a young guy or a veteran and we didn’t play or compete at an NHL level tonight,” Coyotes coach Dave Tippett said.

Crosby received treatment between the first and second periods after getting whacked in the mouth by Arizona’s Martin Hanzal. The sellout crowd cheered when the captain returned to the bench about three minutes into the second. The roar grew considerably louder when Crosby stood all alone in front of the Coyotes net and patiently waited for the rebound off Evgeni Malkin’s slap shot to fall below the crossbar before he took a swing at it, replicating a goal he scored against Dallas earlier this month when he smacked the puck off the back of Stars goaltender Antti Niemi.

By then, the matter was already well in hand for Pittsburgh, which improved to 52-23-8 in the regular season since Sullivan replaced Mike Johnston on Dec. 12, 2015.