Russia, World Championship winners in 2014 and silver medallists in 2015, were on top from the start but were unable to find the net in a frustrating first period.

They eventually broke the deadlock in the second, however, when Dmitri Orlov’s shot was nicely re-directed by Ivan Telegin.

Artemi Panarin then doubled the advantage before Roman Lyubimov made it three with a "baseball-bat" style finish after Alexei Yemelin's shot caromed off the back boards.

"It turned out not to be an easy game," said Lyubimov.

"They played quick against us, but it was good that we got the shutout for Ilya."

Russia are now tied with Czech Republic on 15 points at the top of Group A, with the Russians up against third-placed Sweden tomorrow as Czech Republic face Switzerland.

Defending champions Canada moved joint top of Group B with Finland after gaining their sixth successive victory today in Saint Petersburg's Yubileyny Sports Palace.

Captain Corey Perry had a goal and an assist on his 31st birthday as his team ensured France's elimination with a 4-0 victory.

Next, the defending champs will battle Finland for top spot in Group B.

It avenged France's shock 5-4 win over the Canadians at the 2014 World Championships in Belarus.

Mark Stone also had a goal and an assist, while Matt Duchene and Mark Scheifele added singles for Canada.

They will now face Finland in the group's key match tomorrow.