Rapid Reaction: Cubs 4, Brewers 2

CHICAGO -- The Chicago Cubs beat the Milwaukee Brewers 4-2 on Wednesday night. Here's a quick look at the game.

How it happened: The Cubs scored twice in the first inning as Chris Coghlan led off with a double, Javier Baez followed with a single, Anthony Rizzo hit a sacrifice fly and then Starlin Castro drove in the second run with an RBI hit. Baez and Rizzo went back-to-back in the third inning as the former put a ball onto Waveland Avenue for his first Wrigley Field home run. Cubs starter Tsuyoshi Wada had few issues with the Brewers until the seventh inning when they went back-to-back as well, with Rickie Weeks and Martin Maldonado hitting homers. Wada's night was done, but the bullpen finished the job. Hector Rondon earned his second save in as many nights.

What it means: The top of the Cubs' lineup was devastating as Brewers starter Kyle Lohse was pounded in the early going. It's a sign of things to come as Baez and Rizzo brought the crowd to its feet with their home runs on consecutive pitches. And while Castro didn't go deep, he extended his hitting streak to 12 games despite a hurt knee. He had three hits and the top four in the Cubs' lineup went 9-for-15. The good news is all those players will be part of next year's lineup -- barring a trade -- including Coghlan.

First pitch Rizzo: Rizzo extended his major league lead on first-pitch home runs with his 11th of the year and 27th overall. He was hitting .396 coming into the game when putting the first pitch in play.

Lohse leaves: Brewers start Kyle Lohse left the game after three innings when he tweaked his right ankle during an at-bat.

Ailing Cubs: Castro tweaked the outside of his left knee running the bases earlier in the week but hasn't missed time. ... Outfielder Justin Ruggiano has a groin strain but was available.

Doubront update: Recently acquired left-hander Felix Doubront will make at least one more rehab start at Triple-A Iowa after lasting four innings on Tuesday.

"We look at it like [Jake] Arrieta was," general manager Jed Hoyer said before the game. "He's had moments of success in the American League East. He was struggling when he came over. Getting his confidence and stuff back is important. We know he has potential. We just have to bring it out of him."

What's next: The series concludes on Thursday afternoon when Edwin Jackson (6-12, 5.61) opposes Mike Fiers (1-1, 1.80).