Cubs fans try to secure NLCS Game 6 tickets

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CHICAGO -- It could be an historic night in Chicago.

The Cubs are in a position to clinch a World Series spot for the first time since 1945.

Fans lined up outside Wrigley Field all night, waiting for the box office to open -- which it did at 8 a.m. Saturday.

People in line were given numbers so there are not fights like last week.

Many fans who don't have tickets to Game 6 are still planning to watch it at a bar in near the ballpark.

The city says it's got a plan in place, to keep everyone safe.

Streets near Wrigley Field will be closed off to trucks two hours before the game, that's the biggest change now that the Cubs could clinch. Otherwise officials say security will be very much like it was for games one and two.

People headed to Wrigleyville tonight are encouraged to take public transportation.