PHILADELPHIA (AP) — Bryce Harper homered twice, Cal Stevenson hit a two-run, go-ahead double in the seventh inning and made a run-saving, highlight-reel catch in the eighth, and the NL East-leading Philadelphia Phillies rallied to cool off the New York Mets with a 6-4 victory on Saturday.

J.T. Realmuto added an RBI double for the Phillies, who have won 10 of 13 and lead the Mets by eight games in the division. The teams will wrap up their three-game series on Sunday afternoon before the Mets host the Phillies for four games Sept. 19-22.

“Really good team win today,” Harper said. “It's a big win. That's a good team over there, and they're playing well.”

Starling Marte singled, tripled and drove in three runs and Luisangel Acuña had a pair of singles in his major league debut for the Mets, who lost for just the third time in 15 games. New York is tied with Atlanta for the final National League wild card after the Braves blew out the Dodgers at home.

With his team down 4-0, Harper launched the first of his two drives off starter Luis Severino with one out in the fourth, a 397-foot opposite-field drive off an 85 mph changeup. He pulled Philadelphia within 4-3 in the sixth with a two-run shot off an 87 mph slider that came on a 3-2 count. The two-time NL MVP, who hadn't homered since Aug. 9, has 28 home runs on the year.

“It felt like a playoff atmosphere, felt like a big situation,” Harper said. “I love that.”

Philadelphia went ahead in the seventh. Danny Young (4-1) surrendered a pair of singles to Bryson Stott and Realmuto to start the frame, with both advancing on Brandon Marsh’s sacrifice bunt. Young slammed his glove and hat into the bench in New York’s dugout in frustration after being lifted by manager Carlos Mendoza for Reed Garrett.

Garrett struck out pinch-hitter Weston Wilson before Stevenson clubbed a 3-2, 92-mph cutter to the wall in right to score Stott and Realmuto.

“Just a huge at-bat by him,” Harper said.

Jeff Hoffman pitched a scoreless eighth, and Carlos Estévez finished it in the ninth for his 26th save in 31 chances and sixth in eight tries since joining the Phillies prior to the trade deadline.

Hoffman got some help from Stevenson in center field when he robbed J.D. Martinez of a home run with a leaping catch at the wall for the first out of the eighth.

Orion Kerkering (5-2) worked a 1-2-3 seventh after Taijuan Walker tossed three scoreless innings in relief of starter Kolby Allard.

New York gave Severino a four-run cushion. Marte worked a bases-loaded walk in the first before hitting a two-run triple off Allard in the Mets’ three-run third inning to continue his success against Philadelphia. Marte is batting .375 in his career against the Phillies.

Allard, the fourth different No. 5 starter used in as many trips through the rotation, lasted just three innings, surrendering three earned runs on five hits with three walks and three strikeouts. Walker, whom the Phillies signed to a four-year, $72 million free-agent deal prior to the 2023 season, excelled in his new role after getting demoted to the bullpen due to ineffectiveness as a starter.

“He's a great teammate,” Phillies manager Rob Thomson said of Walker. “He's handled this like a pro.”

Walker was happy to contribute in a positive way.

“It feels good,” he said. “I feel like I haven't done a good job of helping the team this year. Today was the best I felt all year."

Acuña recorded his first hit with a single to center field off Walker leading off the fourth and started the ninth with a single to center off Estévez. Acuña, a younger brother of Atlanta Braves star Ronald Acuña Jr., is one of the organization’s top prospects. He hit .258 with 40 steals while splitting time among second base, shortstop and center field with Triple-A Syracuse.

“Good to see him fight and get us going in the ninth,” Mendoza said. “I thought he was good.”

Acuña, 22, started at shortstop and batted ninth. He came over when the Mets traded Max Scherzer to Texas in July 2023. Acuña was promoted one day after All-Star shortstop Francisco Lindor left Friday night’s 11-3 victory against the Phillies in the seventh inning because of lower back soreness. Mendoza said the move was precautionary following the game and made the decision to give Lindor another day of rest and recovery.

Severino gave up three runs on six hits with five strikeouts and a walk in six innings. The 30-year-old right-hander made two All-Star teams with the Yankees before signing a one-year, $13 million deal in the offseason with the Mets after struggling to an injury-plagued season and 6.65 ERA in 2023.

TRAINER’S ROOM

Phillies: 3B Alec Bohm (left hand strain) and INF Edmundo Sosa (back spasms) played for Triple-A Lehigh Valley in rehab assignments on Saturday. ... Harper winced while batting in the eighth, flexing his right arm. He recently told MLB.com that he was playing with a sore wrist and sore right elbow.

Mets: Marte was drilled on the left forearm by a 95-mph sinker from Hoffman in the eighth but stayed in the game.

UP NEXT

Mets LHP David Peterson (9-2, 2.98) opposes Philadelphia LHP Cristopher Sánchez (10-9, 3.33) in the finale of the three-game series on Sunday afternoon.

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AP MLB: https://apnews.com/hub/mlb