Wrigley field was evacuated and closed shortly after the Chicago Cubs win 2-0, against the defending champions San Francisco Giants. The Cubs swept the Giants in a home series for the first time in 38 years.

According to Associated Press, Chicago Police spokesman Thomas Sweeney confirmed the telephone threat on Sunday, but declined to provide further details or who called it in. The bomb threat cleared out roughly 40,000 players, coachers, fans, media staff, and Wrigley Field employess.

The police brought in bomb-sniffing dogs and secured the whole stadium. After an hour of searching, people were allowed back inside the stadium.

The Chicago Cubs released the following statement in a report by CSN Chicago:

"Following our game this afternoon, we received a bomb threat and took swift action to clear the few remaining fans, players, staff and media from the ballpark. After a thorough search by law enforcement, no evidence was found to suggest this threat was credible. We take safety at Wrigley Field seriously and are working with law enforcement to pursue the person who initiated this threat." 

All the four games against the Giants were close. Kyle Schwarber helped win the first two games. He hit a 3-run home run in the third inning of the first game and two hits and two RBIs in the next game.

Schwarber was joined by fellow rookies Kris Bryant, Addison Russell, and Jorge Soler in an 8-6 win. In the 2-0 win before the bomb threat, Bryant and Russell drove in the two runs.

Starter Jake Arrieta pitched for 7.2 innings, striking out six, walking four, and allowing only four hits. He improved his record to 13-6. Hector Rondon earned his "number-19-save."

"Because of the division we're in, the two teams ahead of us, we know they're not slowing down and we don't intend to either. What we have to do now is just continue to make it difficult for the guys ahead of us and continue to show we're going to put pressure on and not let up," Arrieta said via Associated Press.

Jake Peavy took the loss for the Giants. Left fielder Nori Aoki will be further evaluated after getting hit in the head by a 92 mph fastball from Arrieta. He left in the third inning. 

This is the first four-game sweep of San Francisco by the Cubs in a home series since June 1977. They now trail the Cardinals by 8.5 games in the NL Central, and the defending champs are 3.5 games behind the Dodgers in the NL West.

The Cubs have a 3.5 game lead over the Giants for the second NL Wildcard spot.