ATLANTA — The seventh-inning stretch served as a wake-up call for the National League champions Saturday night.

As the prospect of a tied World Series loomed, the Braves — with two big swings — positioned themselves to avoid a return trip to Houston. The Braves are now on the brink of hoisting a World Series trophy on their home turf.

Dansby Swanson and Jorge Soler launched back-to-back homers in the seventh inning, giving the Braves most of the offense they needed, in a 3-2 victory over the Astros in Game 4 of the World Series. Atlanta took a 3-1 lead in the series in front of a sellout crowd at Truist Park that included former president Donald Trump, who joined the chorus of fans performing the Tomahawk Chop.

The Braves have won seven straight home games this postseason. They will go for the knockout punch Sunday night, deploying a bullpen game for a second straight night. Champagne will be on ice for a franchise that last won the World Series in 1995 (the city of Atlanta’s only championship in the four major sports). The Astros are scheduled to start left-hander Framber Valdez. The 2016 Cubs were the last team to overcome a 3-1 series deficit in the Fall Classic.

“This is our house,” Braves outfielder Eddie Rosario said. “We’re coming [Sunday] with that energy and that focus. We know they’re a resilient group and they don’t give up, but we have our heads high right now, and we’re going to be ready to play.”

For a second straight night, Braves pitchers delivered. After taking a combined no-hitter into the eighth inning on Friday, the Braves’ pitchers bent but didn’t break Saturday, as the Astros left 11 runners on base. Kyle Wright handled the bulk of the work, with one run allowed over 4 ²/₃ innings behind opener Dylan Lee.

Then there was the Braves’ defense: Rosario stabbed at Jose Altuve’s shot to left field in the eighth and snared it backhanded for the final out as he collided with the left-field fence.

Swanson raised an index finger in the air as he rounded first base in the seventh, after clearing the right-field wall to tie it 2-2 against Cristian Javier.

“It was just a complete changer,” Soler said.

Four pitches later, Soler smashed a pinch-hit line drive to left field that arrived at the fence simultaneously with Yordan Alvarez. The ball carried past Alvarez’s outstretched glove into the bullpen for the go-ahead run.

“We usually try to really concentrate on winning the seventh, eighth, and ninth, and they won the seventh and the eighth,” Astros manager Dusty Baker said. “That got the crowd excited, especially we knew that short wall in right field would come into effect sooner or later [for Swanson], but we were hoping it would come to our benefit, but it came to theirs.”

Austin Riley’s RBI single in the sixth sliced the Astros’ lead to 2-1, but Phil Maton limited the damage by striking out Travis d’Arnaud with the bases loaded to end the threat. Rosario doubled against lefty Brooks Raley and Freddie Freeman walked before Phil Maton entered and struck out Ozzie Albies for the second out before Riley delivered his third RBI of the series. After Joc Pederson was intentionally walked, d’Arnaud was caught looking at strike three.

The 5-foot-6 Altuve (serenaded with “It’s a Small World” by the Braves organist) cleared the center-field fence in the fourth with a solo homer off Wright that gave the Astros a 2-0 lead. The blast was the 23rd of Altuve’s career in the postseason, pushing him ahead of Bernie Williams for second all-time. Manny Ramirez is the career leader with 29 postseason homers.

The opener Lee lasted just four batters before he was removed. After Alvarez walked to load the bases with one out, Wright entered and retired Carlos Correa on a grounder, with Altuve scoring the game’s first run. The lefty Lee’s final line included two walks and one hit allowed.

Astros starter Zack Greinke fired four shutout innings, allowing four hits with three strikeouts. The veteran right-hander was making his 21st career start in the postseason.

Greinke allowed a single in each of his initial four innings but did not allow a run. In the third and fourth, the Astros turned inning-ending double plays behind him, following hits by Rosario and Riley, respectively.