The Chicago Cubs beat the Cincinnati Reds 3-0 on Tuesday night. Here’s a quick look at the game.

How it happened: Before a short rain delay in the first inning, Anthony Rizzo took Johnny Cueto deep to right for his 30th home run of the season. Arismendy Alcantara also went out to right with a man on in the seventh inning to extend the Chicago lead. Travis Wood kept the Reds off balance all night and gave up just two hits and a walk over six innings. He struck out five. Three relievers shut down the Reds the rest of the way, and Hector Rondon earned his 22nd save.

What it means: The Cubs have been pitching lights out, and they followed up a one-hit effort on Sunday by giving up just three Tuesday. It was one of Wood’s best starts of the season; a strong final month for him can’t hurt going into next season. The Cubs' team ERA in August is a sparkling 2.96. That’s second best in the National League this month.

Baez whiffs: Javier Baez struck out four times. It was his fourth four-strikeout game this season. According to ESPN Stats and Information, Baez became the first player in more than 100 years to reach that mark in his first 21 career games.

Rizzo leaves: Rizzo became just the sixth player in baseball to reach 30 home runs this season, a feat he achieved for the first time in his young career. Not only has he increased his power this season, he’s done it while bringing up his batting average, which was a point of criticism last year. He left the game after batting in the seventh inning; replays showed him wincing after his swing and a jog to first base. Cubs broadcaster Len Kasper said Rizzo left with lower back tightness. Outfielder Ryan Sweeney also left the game with a reported hamstring strain.

Castro’s return: Starlin Castro played for the first time in a week after he was activated from the bereavement list. He had two hits in his first game since Aug. 19.

What’s next: Game 2 of the series takes place on Wednesday night at 6:10 CT when Jacob Turner (4-7, 5.77 ERA) makes his first start as a Cub. He’ll face Mat Latos (4-3, 2.99). Outfield prospect Jorge Soler is expected to make his major league debut.