Arch Niemi: Sharks goalie blanks former team

Antti Niemi got his first shutout of the 0.

Niemi, who backstopped the Blackhawks to a Stanley Cup title in 2010, made 11 saves in the third period after stopping 10 shots in the first and 13 in the second, posting his 14th career shutout.

Jason Demers scored his first goal of season, and seventh of his career, on a power play late in the second period after the Sharks won a faceoff in the Chicago zone.

San Jose killed off four Blackhawks power plays to earn its fourth straight win and sixth in seven games.

Corey Crawford had 20 saves for the Blackhawks, who have lost three in a row on the heels of a four-game winning streak. They have been outscored 15-4 in losses to Calgary, Edmonton and San Jose.