PHILADELPHIA — The Phillies brought back a crop of the city’s sports champions, including Mike Schmidt, Julius Erving, Bernie Parent and Brandon Graham, on Tuesday night to celebrate the first World Series game at Citizens Bank Park since 2009.

It got loud fast, but that was only the warm-up act for what followed.

In a display of brute force, the Phillies mashed five home runs in a 7-0 victory over the Astros in Game 3 of the World Series. The Phillies, ahead two games to one in the series, are within two victories of winning their first World Series title in 14 years.

“It’s tough to play here, even as a home player,” Nick Castellanos said. “But I can’t imagine what it’s like for the Astros right now. They just really have zero breathing room and that is a good thing.”

Bryce Harper, Alec Bohm, Brandon Marsh, Kyle Schwarber and Rhys Hoskins all homered on a night when Astros right-hander Lance McCullers Jr., might as well have walked to the plate and placed his pitches on a tee over 4 ¹/₃ innings. McCullers became the first pitcher in World Series history to allow five homers in a game.

If McCullers was tipping pitches, the Phillies weren’t about to reveal it.

“A lot of really good hitters in the lineup,” Bohm said. “I think tonight we were locked in and collectively we got a few mistakes and we didn’t miss them. Any given night you can get those mistakes and maybe foul it off or miss it.”

The sellout crowd of 45,712 roared with approval for the hometown heroes, who had hit only one homer in splitting the two games in Houston over the weekend. That lone blast, from J.T. Realmuto in the 10th inning, provided the margin of victory in Game 1.

The game Tuesday was fast and furious. The Astros were hit by a bus and never recovered.

“It’s pretty evident what kind of threat they pose,” Astros manager Dusty Baker said. “They can hit the ball out of the ballpark and they can hit. So we just got to go back to the drawing board and figure, was it them tonight or was it Lance tonight not having his stuff.”

Left-hander Ranger Suarez was sharp with five shutout innings before the Phillies’ bullpen handled the rest. In the best performance by a Phillies starting pitcher in this World Series, Suarez allowed three hits and one walk with four strikeouts in lowering his ERA this postseason to 1.23. That came after Aaron Nola and Zack Wheeler were flat in their respective starts in Games 1 and 2.

The Astros entered the World Series 7-0 in the postseason. They may have met their match, however, in a Phillies team riding the momentum of reaching the playoffs as the National League’s No. 6 seed and then beating the Cardinals, Braves and Padres to reach the World Series.

“We’re all a family here,” Harper said. “We all try to come in here and play the best baseball we can knowing that we have a whole city behind us and that we have a whole organization behind us as well. That’s all you can ask for as a player, knowing that the people behind you have your back, if that’s your manager, if that’s your GM or president, or your owner as well.”

Harper smacked a two-run homer in the first inning to get the Game 3 party started. Schwarber walked leading off the game, and with two outs, Harper hit the first pitch he faced from McCullers into the right-field seats. The homer was Harper’s sixth this postseason.

Bohm, who was approached in the on-deck circle by Harper with information before he led off the second, hit a line drive into the left-field seats on the first pitch to extend the Phillies’ lead to 3-0. McCullers struck out the next two batters before Marsh homered over the right-field fence. It was the first time a team hit three homers in the first two innings of a World Series game.

McCullers’ demise was complete in the fifth after consecutive homers by Schwarber and Hoskins buried the Astros in a 7-0 hole. Schwarber hit a rocket over the center-field fence for two runs and Hoskins hit a slider into the left-field seats to end McCullers’ night.

“It’s just a collective group effort,” Bohm said. “You look back and Schwarber hit one 450 feet, Bryce is coming up now. It’s a deep lineup. So I think when we get momentum and guys are building on each other, it’s just kind of what happens.”