Series preview: Brewers at Cubs

CHICAGO -- The Chicago Cubs begin a four-game series with the first-place Milwaukee Brewers on Monday night.

Monday: Jake Arrieta (6-3, 2.80) vs. Yovani Gallardo (6-6, 3.54), 7:05 p.m.

Tuesday: Kyle Hendricks (3-1, 2.10) vs. Wily Peralta (14-6, 3.42), 7:05 p.m.

Wednesday: Tsuyoshi Wada (1-1, 3.25) vs. Kyle Lohse (11-6, 3.33), 7:05 p.m.

Thursday: Edwin Jackson (6-12, 5.61) vs. Mike Fiers (1-1, 1.80), 1:20 p.m.

Extra innings: The Cubs have played six extra-inning games in their last 12 marking the most in that time frame since 1983.

Baez watch: Due to striking out 12 times in his first six games, Javier Baez is seeing a lot of pitches. He's averaging 4.24 pitches per plate appearance so far compared to the league average of 3.83. But he has yet to earn a walk in his first six games.

Who's Hot/Who's Not: Starlin Castro has a nine-game hitting streak heading into the series on Monday. He's 15-for-37 (.405) during that stretch. Arismendy Alcantara was 1-for-10 (.100) over the weekend while Chris Coghlan was 2-for-14 (.143).