Jonathan Toews scored 51 seconds into overtime, Corey Crawford made 39 saves and the Blackhawks beat the Anaheim Ducks 1-0 on Monday night in a rematch of last season’s Western Conference finals.Crawford earned his second straight shutout and No. 14 for his career as the Blackhawks closed out a perfect 4-0 homestand. They also beat Tampa Bay 1-0 in overtime on Saturday night on Toews’ first goal of the season.Taking advantage of the open ice for the NHL’s new 3-on-3 overtime, Toews skated in and beat Frederik Andersen over his left shoulder.The Ducks were shut out for the second straight game and became the first NHL team since the New York Americans in 1930-31 to be shut out five times in their first eight games of the season. Andersen finished with 23 stops.