No makeup date has been announced, so the two teams will play two games instead of three this week.
Adam Wainwright (4-1) lowered his ERA to 1.93 by going 8 1-3 scoreless innings, allowing only five hits.
The Rams gave up the second overall pick in 2012 for a quarterback they did not need to move down just four spots, in return receiving future considerations galore. After additional jockeying during the draft, the Rams came away with starting defensive tackle Michael Brockers and cornerback Janoris Jenkins, plus promising running back Isaiah Pead and offensive guard Rokevious Watkins.
Ervin Santana pitched seven strong innings and the Kansas City Royals ended Boston's seven-game winning streak with a 4-2 win over the Red Sox in the opener of a day-night doubleheader on Sunday.
The Phillies beat the Cardinals 7-3 on Sunday night.
The Colorado Avalanche beat the St. Louis Blues 5-3 on Sunday.
Cardinals outfielder Carlos Beltran has hit homers in the first three games of the four-game series.
Daniel Nava hit a three-run homer in the eighth inning to lift the Red Sox in an emotional game at Fenway Park.
Blues goalie Brian Elliott made 21 saves in his team's 2-1 win.
After a rough streak leading into the game, Phillies starter Roy Halladay held the Cardinals to two hits in seven innings on Friday.
Alex Smith, who is preparing for his first season as the Chiefs quarterback, participated in a minicamp with his new teammates Thursday.
David Perron also scored his first goal in 17 games for the Blues.
Adam Wainwright also pitched seven innings, giving up three runs and nine hits, in the victory.
Kansas City Royals pitcher Wade Davis and right-fielder Jeff Francoeur guided the team to a 1-0 victory over the Atlanta Braves on Wednesday.
A.J. Burnett took a no-hitter into the seventh inning as the Pittsburgh Pirates beat the St. Louis Cardinals 5-0 on Wednesday night.
Former MU Tiger Blaine Gabbert will compete with fellow Jacksonville Jaguars player Chad Henne for a spot as the team's franchise quarterback.
San Francisco 49ers players Justin Smith and Aldon Smith are expected to recover from offseason surgeries in time for training camp.
Blues coach Ken Hitchcock got his 600th career win against the franchise he beat for his first victory when his Dallas Stars won at Vancouver on Jan. 22, 1996.
Justin Upton, Jason Heyward and Dan Uggla homered in the eighth inning, and Juan Francisco hit a pair of solo shots earlier in the game to help the Braves win their 10th straight with a 6-3 victory over the Royals on Tuesday night.
The cancellation allows St. Louis starter Jake Westbrook to reset his ERA to 0.00. The right-hander has struggled against the Pirates in his career, and Pittsburgh turned five consecutive singles in the first inning into four runs.