New York’s Brandon Nimmo, left, hugs Francisco Lindor, who hit a grand slam home run against the Philadelphia Phillies during the sixth inning of Game 4 of the National League division series, Wednesday night in New York. Frank Franklin II/Associated Press

NEW YORK — Francisco Lindor hit a grand slam in the sixth inning, his latest clutch swing in an extraordinary season full of them, and the New York Mets reached the National League Championship Series with a 4-1 victory over the Philadelphia Phillies on Wednesday.

Edwin Díaz struck out Kyle Schwarber with two runners aboard to end it as New York finished off the rival Phillies in Game 4 of their best-of-five Division Series, winning 3-1 to wrap up a postseason series at home for the first time in 24 years.

Immediately to follow in a raucous clubhouse, the Mets’ first champagne-soaked clinching celebration in Citi Field’s 16-season history.

After three days of rest, New York will open the best-of-seven NLCS on Sunday at the San Diego Padres or Los Angeles Dodgers. San Diego held a 2-1 lead in their NLDS heading into Game 4 on Wednesday night.

For the NL East champion Phillies, who won 95 games and finished six ahead of the wild-card Mets during the regular season, it was a bitter exit early in the playoffs and a disappointing step backward after they advanced to the 2022 World Series and then lost Games 6 and 7 of the 2023 NLCS at home to Arizona.

After falling short again in October, Bryce Harper and the Phillies are still looking for the franchise’s third championship.

Perhaps overanxious at the plate with so much on the table, the Mets left the bases loaded in the first and second and stranded eight runners overall through the first five innings.

They put three runners on again in the sixth, this time with nobody out, before No. 9 batter Francisco Alvarez grounded into a force at the plate against All-Star reliever Jeff Hoffman.

With the season on the line, Phillies Manager Rob Thomson then summoned closer Carlos Estévez to face Lindor, who drove a 2-1 fastball clocked at 99 mph into Philadelphia’s bullpen in right-center, giving New York a 4-1 lead and sending the sold-out crowd of 44,103 into a delirious, bouncing, throbbing frenzy.

With his first homer of these playoffs, Lindor joined Shane Victorino and Hall of Fame slugger Jim Thome as the only major leaguers with two postseason grand slams. The star shortstop also connected for Cleveland at Yankee Stadium in Game 2 of a 2017 AL division series.

Edgardo Alfonzo hit the only other postseason slam in Mets history, during a 1999 division series at Arizona.

That left fans again chanting “MVP! MVP!” as Lindor disappeared into the dugout and again when he took his position on defense in the seventh.

AMERICAN LEAGUE

TIGERS 3, GUARDIANS 0:  Riley Greene and Spencer Torkelson each drove in a run, and six pitchers combined to lift Detroit over visiting Cleveland and a 2-1 lead in their AL division series.

The Tigers, baseball’s hottest team the past two months, will have their first chance to advance in the playoffs since 2013 on Thursday night in Game 4 at Comerica Park.

Cleveland has gone 20 straight innings without scoring since opening the series with a five-run first and a two-run sixth in its 7-0 win.

After AL Cy Young Award favorite Tarik Skubal helped Detroit shut out Cleveland in Game 2, Manager A.J. Hinch put a stream of pitchers on the mound and kept the Guardians quiet at the plate.

Detroit reliever Will Vest entered with two on and two outs in the seventh and got David Fry to line out to Matt Vierling at third.

Fans were fired up all day, chanting “Let’s go Tigers!” before the first playoff pitch in Detroit since 2014, and 44,885 were in the stands for the largest crowd in Comerica Park’s 25-year history.

Right-hander Keider Montero retired the side in order in the first, and the previously slumping Greene hit a two-out RBI single in the home half.

Brant Hurter gave up five hits in 3 1/3 innings. Beau Brieske pitched two innings, and Sean Guenther got one out. Vest threw 1 1/3 innings before Tyler Holton handled the ninth.

It’s the first time Detroit has recorded two shutouts in a postseason series. It’s also the first time since the 1905 World Series that the first three games of a postseason series all were shutouts.

The Guardians had a chance to score in the third. Steven Kwan reached on a one-out infield single and advanced on shortstop Tyler Sweeney’s throwing error. José Ramírez was intentionally walked with two outs, but Josh Naylor hit an inning-ending groundout.

The Tigers took a 2-0 lead in the third after No. 9 hitter Jake Rogers led off with a double, advanced to third on Parker Meadows’ grounder and scored on Vierling’s sacrifice fly.

Cleveland’s pitchers did enough to keep the AL Central champions in the game, but the lack of offense made it moot.

The Guardians gave righty Alex Cobb the start for his first appearance since Sept. 1. He gave up two runs and three hits in three innings.

Eli Morgan gave up Torkelson’s RBI double in the sixth. The slugger had been 0 for 14 with nine strikeouts in the postseason.

NOTES

BRAVES: The Braves filed a lawsuit against former employees Bill Acree and his son Ben Acree, in addition to Heritage Auctions, in a case involving the home plate and bases from Hank Aaron’s 715th home run.

The Braves’ lawsuit contends the memorabilia was stolen, unlawfully possessed and attempted to be sold at auction. The team demanded that the items be returned by Heritage, seeks unspecified damages at a jury trial and a court order declaring the Braves the rightful owner of the home plate and bases.

Bill Acree worked for the Braves since 1966, holding several positions, including visiting clubhouse manager, home clubhouse manager, equipment manager, director of team travel and senior adviser. He moved into an advisory role in 2015. Ben Acree worked for the Braves from 1997 until 2016 as part of the home clubhouse staff, including equipment manager duties.

ASTROS: Utility player Mauricio Dubón had surgery to repair a ligament in his left thumb.