ATLANTA (AP) — Four months after dropping 11 games under .500, the New York Mets earned a playoff berth a day after the regular season was supposed to end.

With an 8-7 win at Atlanta in the opener of a makeup doubleheader on Monday behind Francisco Lindor's ninth-inning homer, the Mets advanced to a best-of-three NL Wild Card Series starting Tuesday at Milwaukee or San Diego. If New York wins the second game, it would play at the Padres. If the Mets lose the nightcap, they would play at Milwaukee.

New York overcame an 0-5 start to advance to the postseason for just the 11th time in 63 seasons. The Mets then rebounded from deficits of 3-0 in the eighth inning and 7-6 in the ninth to beat the Braves in Monday's opener. And the big hit was by Lindor, who returned Friday from a back injury that had sidelined him since Sept. 15.

“In slow motion it felt like,” Lindor said when asked about the homer. “Emotion. Emotion. It felt like I got the pitch that I wanted. And you never know if the ball is going to go out or not but I feel like I got it 100%. We’re one step closer. Now we’ve got to finish it. Finish, finish, finish.”

Asked what he was thinking when he rounded the bases, Lindor said: “My back hurts. I’m tired. I know how good Atlanta is. But the one thing that I had in my mind was just thank you, Jesus and God.”

New York had lost 77 straight games when trailing by three runs in eighth inning or later since May 17, 2023.

It was a throwback to 1973, when the Mets also clinched a playoff spot on the day after the season was supposed to finish. Back then, they beat the Chicago Cubs 6-4 to secure the NL East title.

This year, a 10-3 loss to the Dodgers on May 29 completed a three-game Los Angeles sweep at Citi Field by a combined 18-5. New York dropped to 22-33 in its first season under manager Carlos Mendoza and was six games out of the last wild-card berth and needing to overcome seven teams.

Lindor called a players' only meeting. As players explained it, the Mets aired some issues in the clubhouse that day and committed themselves to positivity, effective preparation and a team-first approach dedicated to helping each other and winning games.

"We just opened the floor and talked about ways we can turn it around,” outfielder Brandon Nimmo said then. “Just felt like a boiling-over point.”

Since then, with Lindor leading the charge, they have the best record in the majors at 67-39. They have outscored opponents 541-430.

“It’s been an uphill fight,” Lindor said. “We put ourselves in a big hole and we kept climbing and kept climbing. We kept our shoulders above water. After the All-Star break, you know, we never believed that we were drowning.”

One of New York's biggest concerns going into the Wild Card Series is the durability of closer Edwin Díaz, who got the win in the doubleheader opener. The right-hander has thrown 66 pitches over the past two days.

Baseball's biggest spenders since Steve Cohen bought the team ahead of the 2021 season, the Mets reached the playoffs in 2022 only to lose a three-game Wild Card Series to San Diego. The Mets sank to 75-87 last year, when they had a record $319.5 million payroll and were assessed a record $100.8 million luxury tax.

They began this year as the top spender again at a projected $321 million, including $70 million in payments to teams covering salaries of traded players Max Scherzer, Justin Verlander and James McCann. Their projected luxury tax was $83 million.

After the win in the doubleheader opener, Cohen posted on X: "Have you ever seen a game like that? I am so proud of this team. Met fans, go out and celebrate."

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New York Mets owner, Steve Cohen, right, high fives Luisangel Acuña in the dugout after winning the game in the ninth inning of a baseball game against the Atlanta Braves, Monday, Sept. 30, 2024, in Atlanta. (AP Photo/Jason Allen)

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New York Mets pitcher Edwin Díaz, center, celebrates with teammates after winning the game in the ninth inning of a baseball game against the Atlanta Braves, Monday, Sept. 30, 2024, in Atlanta. (AP Photo/Jason Allen)

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New York Mets' Mark Vientos celebrates in the dugout after scoring in the eighth inning of a baseball game against the Atlanta Braves, Monday, Sept. 30, 2024, in Atlanta. (AP Photo/Jason Allen)

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New York Mets shortstop Francisco Lindor throws to first base in the third inning of a baseball game against the New York Mets, Monday, Sept. 30, 2024, in Atlanta. (AP Photo/Jason Allen)

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New York Mets' Francisco Lindor checks his swing in the third inning of a baseball game against the Atlanta Braves, Monday, Sept. 30, 2024, in Atlanta. (AP Photo/Jason Allen)

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New York Mets' Francisco Lindor prepares to swing in the third inning of a baseball game against the Atlanta Braves, Monday, Sept. 30, 2024, in Atlanta. (AP Photo/Jason Allen)

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A fan dances in the stands during a rally in the eighth inning of a baseball game between the New York Mets and the Atlanta Braves, Monday, Sept. 30, 2024, in Atlanta. (AP Photo/Jason Allen)

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New York Mets' Francisco Lindor celebrates in the dugout after scoring in the eighth inning of a baseball game against the Atlanta Braves, Monday, Sept. 30, 2024, in Atlanta. (AP Photo/Jason Allen)

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