TIME: Sunday, 8 p.m. EST.
Calgary, just two points ahead of St. Louis and Nashville for sixth place in the West, managed a 4-4 tie with the Predators on Saturday night. Meanwhile, the Blues pulled themselves into a tie for seventh by beating the Columbus Blue Jackets 5-3.
"These (conference games) are even bigger because we're getting closer to the end and the standings are very tight," the Flames' Denis Gauthier said. "So we've got to approach each game the same way we have all season - one game at a time."
Calgary's Craig Conroy had three assists against Nashville, giving him seven points (one goal, six assists) in his last three games.
Calgary will be looking for a repeat of its last visit to St. Louis, a 4-2 victory on March 2. That was the Flames' second win in the last 10 road meetings with the Blues (2-7-1).
St. Louis' playoff run has received a boost from Mike Sillinger.
The Blues, unbeaten in their last six games (4-0-2), acquired Sillinger from the Coyotes on March 4. In five games since the deal, Sillinger has three goals and two assists.
"It's my job," the 32-year-old Sillinger said. "It's like a second life for me. I enjoyed it at Phoenix, but coming here and getting a chance for the playoffs, especially at my age, it's all a player can ask for."
St. Louis, which has reached the playoffs 24 consecutive years, moved one point ahead of Los Angeles in the race for eighth place in the Western Conference. The Blues' postseason streak is the longest current run in professional sports.
STANDINGS: Flames - 80 points, 3rd place, 11 PB, Northwest Division. Blues - 78 points, 2nd place (tied), 16 PB, Central Division.
TEAM LEADERS: Flames - Jarome Iginla, 36 goals and 63 points; Conroy, 38 assists; Chris Simon, 227 PIM. Blues - Keith Tkachuk, 29 goals and 64 points; Doug Weight, 44 assists; Mike Danton, 141 PIM.
SPECIAL TEAMS (through March 12): Flames - Power play: 15.3 percent (48 for 314), 21st in NHL. Penalty killing: 83.7 percent (251 for 300), 19th. Blues - Power play: 17.5 percent (53 for 302), 9th. Penalty killing: 84.3 percent (284 for 337), 15th.
GOALTENDERS: Flames - Miikka Kiprusoff (19-7-3, 2, 1.64); Roman Turek (4-10-0, 1 SO, 2.68 GAA). Blues - Chris Osgood (24-22-8, 2, 2.26); Reinhard Divis (4-3-1, 0, 3.09).
SEASON SERIES: Blues, 2-1.
LAST MEETING: March 2; Flames, 4-2. At St. Louis, Iginla had two goals, including the game-winner with 3:30 remaining, as Calgary spoiled the home debut of new Blues coach Mike Kitchen.
ROAD/HOME RECORDS: Flames - 17-14-2-2 on the road; Blues - 20-9-7-0 at home.