Game 3 of the World Series between the Phillies and Astros was postponed by rain Monday night with the matchup tied 1-1, pushing the entire Fall Classic schedule back one day.

The rainout moved Game 3 to Tuesday night at Citizens Bank Park in Philadelphia, when the weather was supposed to be all clear. There was a smattering of boos at the ballpark when the washout was announced an hour before the scheduled first pitch on Halloween night.

Game 4 will now be played Wednesday and Game 5 is set for the scheduled travel day on Thursday night — Game 5 will compete with the NFL game that has, of all teams, the undefeated Eagles in Houston against the Texans.

There will be a travel day on Friday if necessary. That had been the original date of Game 6.

Game 6 has been rescheduled for Saturday and Game 7 would be Sunday. All games will start at 8:03 p.m. ET.

After two games in Houston, the Series had moved to Philly for Monday and the Astros were set to send right-hander Lance McCullers Jr. against Phillies righty Noah Syndergaard.

Astros manager Dusty Baker said McCullers would remain the starter for Game 3 if there was a rainout. There was no immediate indication if Syndergaard would pitch for the Phillies.

The Phillies clinched the NL Championship Series with a win against the Padres on a rainy, gusty Sunday. The Phillies famously won the 2008 World Series with a Game 5 victory that took three days to complete because of heavy rain.

Philly familiar: Astros reliever Héctor Neris knows the Phillies perhaps better than anyone on the Astros roster.

The right-hander spent his entire career with the Phillies before joining the Astros this season. He played eight big league seasons for the Phillies after signing with them as an amateur in 2010.

“I spent 12 years for this team, my whole career,” he said. “I (grew) up on this team. And then my first year in a different uniform and come to think about the World Series with the team I was supposed to face, this team, you know, it’s fun for me and pushes me forward to be good and do what I can do.”

Neris got the win in his playoff debut when the Astros beat the Mariners in Game 2 of the AL Division Series, and is 2-0 in six relief appearances this postseason. He also picked up the win in Game 4 of the ALCS that completed a sweep of the Yankees.

In Game 1 of the Series against his former team, Neris continued his strong postseason by striking out Nick Castellanos with the bases loaded for the final out of the seventh inning.

Face to face: Baseball Commissioner Rob Manfred and Tony Clark, head of the players’ union, spoke with each other Saturday on the field in Houston during batting practice for Game 2.

Manfred and Clark didn’t appear together to announce the lockout settlement in March. They chose instead to hold separate news conferences after the end of the 99-day lockout.