Blackhawks 3, Blues 0: Captain Jonathan Toews scored twice as visiting Chicago lost goaltender Corey Crawford but stretched its record season-opening point streak to 20 games.Toews opened the scoring 12 seconds into the game and added another at 6:56 of the third. Marian Hossa assisted on both of Toews' goals, while Andrew Shaw recorded his fifth goal for the Blackhawks, who are on a seven game-winning streak.Crawford, who started his second game since returning from an upper-body injury, left after making six saves in the first period and did not return. Ray Emery stopped 15 shots in the final two periods.Jaroslav Halak finished with 20 saves for the Blues, who were shut out for the second time in three games since Halak returned from a groin injury. St. Louis has three goals in its last four games and fell to 1-4-2 in its last seven home games.Toews finished a nifty passing play by linemates Hossa and Brandon Saad in the first shift of the game, deflecting the puck past Halak from the edge of the crease. Bryan Bickell found Shaw in the slot from behind the net and Shaw blasted a one-timer to make it 2-0 early in the third period, while Toews extended the lead a few minutes later when the rebound from Nick Leddy's point shot bounced right to him at the doorstep.GAME NOTEBOOK: Dating to last season, Chicago's regular-season point streak stands at 25 games, which is third-best all-time behind the 1977-78 Montreal Canadiens (28 games) and the 1979-80 Philadelphia Flyers (35). … The Blackhawks shut out the Blues in St. Louis for the first time since 1995, when Hall of Fame goaltender Ed Belfour was in net for Chicago. … St. Louis finished 0-for-4 on the power play, marking the fifth straight game the Blues failed to score with the man advantage.