Connor Bedard has standout NHL preseason debut with Blackhawks

Bedard recorded two assists in Blackhawks' 2-1 overtime win against Blues.
Fans cheered loudly for 18-year-old and bought his jersey.
Bedard had shot on goal in first period and helped set up game-winning overtime goal.
His arrival in Chicago generated excitement and high expectations.
Many anticipate Bedard contending for Calder Trophy as top rookie.