ST. LOUIS — Nolan Arenado hit a two-run single in the eighth inning, Masyn Winn and Willson Contreras homered and the St. Louis Cardinals beat the Chicago Cubs 5-4 on Saturday night to complete a doubleheader sweep.
St. Louis won the opener 11-3 as Alec Burleson hit a three-run homer to cap a nine-run first inning, and Lance Lynn (5-4) pitched six solid innings.
''Going into this break, we want to win this series and get some Ws,'' Winn said. ''So, to do it against a rival, two games in one day, it's pretty fun.''
John King, Andrew Kittredge and JoJo Romero (4-1) combined to pitch four scoreless innings of relief in the second game before Ryan Helsley pitched a scoreless ninth for his major league-leading 32nd save in 34 chances.
Cardinals starter Kyle Gibson allowed four runs on 10 hits and threw 98 pitches in four innings in the nightcap.
''I can't say enough about the bullpen,'' Gibson said. ''What a great job they did coming in throwing up five zeros, really giving the offense chance after chance. And then Arenado comes up with a big hit. These are the team wins that you look back on in September and October and builds you as a team and gets you to where you want to be.''
Contreras walked and Paul Goldschmidt hit a ground-rule double over the left-field wall to start the eighth inning. Porter Hodge (0-1) struck out Brendan Donovan before surrendering the single to Arenado to give St. Louis the lead.
''It felt great,'' Arenado said. ''Just to come through for the boys and help us get a win. I feel like I haven't done that very much this first half, so it felt great. That pitcher has a good arm. I was just happy to get a pitch over the plate and hit it hard.''