The Blues are in the playoffs for just the second time in seven seasons. St. Louis will face Los Angeles in the second round.
After squeaking into the playoffs as the eighth seed in the West, Los Angeles dominated the NHL's best regular-season team and earned a matchup with second-seeded St. Louis.
The Cardinals lost in the ninth on Jason Mather's two-run single.
The Blue Jays improved to 6-1 with a win over the Royals, who they beat 4-1.
The Chiefs have the No. 11 selection in the first round of the NFL draft on Thursday.
The Cardinals extended their strong start behind another superb outing from Kyle Lohse (3-0), who struck out five without issuing a walk while pitching into the eighth inning Sunday.
The Royals franchise has only six skids longer than 10. It is Kansas City's longest losing streak since dropping 12 consecutive games from May 19 to May 30 of 2008.
St. Louis, the No. 2 seed in the Western Conference, won a playoff series for the first time in a decade against a franchise that reached the conference finals the previous two years.
Greg Biffle says Carl Edwards is still the top driver at Roush-Fenway. But it's Biffle who has dominated this year with top-3 finishes in the first three races and a sixth-place run at California a few weeks ago.
The Cardinals mustered three hits in seven innings against the Pirates' A. J. Burnett then couldn't capitalize on a couple of late chances in a 2-0 loss.
Kansas City's losing streak is its longest since dropping 10 in a row April 10 to April 24 of 2009. The Royals have lost a club record nine consecutive at home, dating to last season.
The efforts of former backup goalie Brian Elliott has helped lift the St. Louis Blues to a 3-1 series lead over the San Jose Sharks in the first round of the NHL Playoffs. The two teams will play Game 5 on Saturday.
Alex Presley's inside-the-park home run was as good as it got for Pittsburgh. Lance Lynn allowed one run in seven innings, leading the St. Louis Cardinals to a 4-1 victory.
The St. Louis Blues moved one win away from the second round of the NHL playoffs, beating the San Jose Sharks 2-1 in Game 4 on Thursday night to take a 3-1 series lead.
The Toronto Blue Jays turned their first triple play in 33 years Friday night, beating Kansas City 4-3. It's the Royals eighth straight loss.
Adam Wainwright, who won 20 games in 2010 and 19 in 2009 before missing last season, is now 0-3 after the Cardinals' loss to the Reds on Thursday.
With a 3-9 start and seven consecutive losses, the Royals are heavily promoting the All-Star game in Kansas City, the first time since 1973 that the city is hosting the event.
St. Louis scored three power-play goals in a 4-3 win in Game 3 to take the series lead against San Jose. The Blues have scored five of their nine goals with the man advantage.
The NHL scheduled a Friday hearing in New York for Raffi Torres, who has a reputation for big — and some say dirty — hits.
The Cardinals extended their winning streak to four games Wednesday night.