That comes after several fans had to be escorted out of Wrigley Field Monday night, after an ugly brawl broke out in the bleachers.
The Cubs released a statement saying, "The safety of our fans is always a top priority. We work closely with our public safety partners to respond to incidents at the ballpark and appreciate their partnership in addressing the situation last night."
Some storms are possible Tuesday night.
Game two began just after 7 p.m., but a rain delay halted play around 10 p.m. with the Cubs winning 4-3.
The Cubs beat the Sox Monday 7-5 in 10 innings.
Pete Crow-Armstrong hit his first career walk-off homerun.
The Associated Press contributed to this report.