(AP) -- After winning the first two of a challenging three-game trip, the Chicago Blackhawks know a final difficult task awaits against one the NHL's best home teams.
The streaky Blackhawks look for a fourth straight victory when they face the rival St. Louis Blues on Tuesday night.
Since Jan. 21, Chicago (36-24-7) has lost nine in a row, then won four straight before losing the next three prior to its current three-game winning streak.
"You know over the course of a season, you're going to have some good stretches and some tough stretches," coach Joel Quenneville said.
This current stretch of success might be the most important for a Chicago team hoping to improve its sixth-place standing in the Western Conference. After beating reeling Toronto 5-4 at home Wednesday, the Blackhawks posted a pair of 2-1 victories at Ottawa on Friday and Sunday in Detroit. All have come without star captain Jonathan Toews, who will miss an eighth straight game with an apparent concussion.