Blackhawks 3, Blues 0: Captain Jonathan Toews scored twice as visiting Chicago lost goaltender Corey Crawford to injury but stretched its record season-opening point streak to 20 games.Toews opened the scoring 12 seconds into the game and added another goal at 6:56 of the third. Marian Hossa assisted on both of Toews' goals, while Andrew Shaw recorded his fifth tally 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 over the final two periods to preserve the shutout.Jaroslav Halak finished with 20 saves for the Blues, who were shut out for the second time in three games since the goaltender returned from a groin injury. St. Louis has scored three goals in its last four games and fell to 1-4-2 in its last seven home contests.Toews finished a nifty passing play involving linemates Hossa and Brandon Saad on 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 for a one-timer that made it 2-0 early in the third period, while Toews extended the lead less than five minutes later when the rebound of defenseman Nick Leddy's point shot bounced right to him on the doorstep.GAME NOTEBOOK: Dating to last season, Chicago's regular-season point streak stands at 26 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 Famer Ed Belfour was in net for Chicago. … St. Louis finished 0-for-4 on the power play, marking the fifth straight game the Blues have failed to score with the man advantage.