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Brian Kersey, Associated Press
Northwestern forward John Shurna, left, rips a rebound from Michigan State guard Brandon Kearney during the first half of a college basketball game on Jan 14, 2012 in Evanston, Ill.

EVANSTON, Ill. — John Shurna scored 22 points and Northwestern beat No. 6 Michigan State 81-74 on Saturday, ending the Spartans' 15-game winning streak

Drew Crawford added 20 points and Davide Curletti, making his first start of the season, had a season-high 17 for the Wildcats (12-5, 2-3 Big Ten), who rebounded from a tough overtime loss at Michigan three days ago.

Michigan State (15-3, 4-1) lost for the first time since it was beaten by Duke in Madison Square Garden on Nov. 15.

Keith Appling led the Spartans with 17 points and Draymond Green had 14 points and 14 rebounds. Michigan State shot 65 percent in the first half and then went cold in the second 20 minutes against Northwestern's zone.

The loss was just the fourth in 30 games against Northwestern for Michigan State coach Tom Izzo and left him two shy of 400 career victories.