A year into the job, Pittsburgh Penguins coach Mike Sullivan's daily message to his team hasn't changed.

Just as he did when he took over an underachieving group last December, Sullivan wants the Penguins to "play the right way."

Be smart defensively. Push the puck up the ice. Don't get caught trying to make the fancy play. Just take the shot. Lots of them, preferably.

Repeat as necessary.

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

Captain Sidney Crosby left briefly after taking a stick to the face then returned to pick up his NHL-leading 21st goal as 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 tally, when he swatted the puck out of midair to make it 5-0.

"When you're winning, it's fun," Crosby said. "I think we've done a good job of limiting other team's chances. When we're doing that, we're creating offense and giving ourselves 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 Pittsburgh, as 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 (Evgeni) Malkin'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 what'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 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.

"I think you just kind of hope you have enough time to wait for it to go below the cross bar and have a play at it," Crosby said.

"Sometimes you put it where you want to. I think the goalie was looking for it up in the air, so I got lucky."

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.

Sullivan's arrival galvanized an underachieving club and provided the spark that ended with the Penguins capturing the franchise's fourth Stanley Cup last June.

Pittsburgh is right back in the thick of it behind Crosby, whose remarkable surge coincided with Sullivan's promotion. The speedy Canadian's 48 goals and 42 assists since Jan 1 are the most in the NHL.

"When our special teams get back up to where we know they can be, and if we continue to score like this and get great goaltending, we're obviously a tough team to play against," Crosby said.