The St. Louis Cardinals defeated the Chicago Cubs 5-1 on Sunday night at Busch Stadium.
The victory allowed St. Louis to secure two out of three games against their National League Central rivals.
Starting pitcher Matthew Liberatore earned the win to improve his record to 3-3.
He threw 5 1/3 scoreless innings while giving up three hits, walking one, and striking out four batters.
Reliever Hunter Dobbins secured his first professional save by pitching the final 3 2/3 innings.
He allowed one run on four hits with four strikeouts.
Dobbins was recalled from Triple-A Memphis earlier that day.
JJ Wetherholt and Ivan Herrera led the offense with two hits and two runs each.
Alec Burleson contributed two RBIs, including a run-scoring single off reliever Ethan Roberts in the third inning.
Masyn Winn extended the lead to 5-0 in the third inning with a two-run single.
Jordan Walker drove in a run during a two-run first inning.
Chicago starter Jordan Wicks took the loss to fall to 0-2 after giving up three runs and four hits over two-plus innings.
Alex Bregman provided the lone run for the Cubs with a solo home run in the sixth inning.
Bregman extended his hitting streak to 11 games.
The Cubs, now 3-2 since halting a 10-game losing skid, will return home on Tuesday night to start a six-game homestand.
They will face the Athletics with right-hander Jameson Taillon scheduled to pitch against left-hander Gage Jump.
The Cardinals remain at home to start a three-game series on Monday night.
They will send right-hander Michael McGreevy to the mound against Rangers right-hander Jacob deGrom.