Yasmani Grandal started a four-run sixth inning with a two-run double that followed Pete Alonso’s error and the Chicago White Sox beat New York 6-2 on Thursday in José Quintana’s Mets debut.

Grandal doubled to the warning track in right after the White Sox loaded the bases against Drew Smith.

The inning started when Alonso backed up on a grounder by Luis Robert Jr. that bounced off his glove. After Alonso’s fifth error of the season, Eloy Jiménez singled and Jake Burger walked. 

Then Oscar Colás hit a sacrifice fly.

Elvis Andrus hit his first triple since Aug. 18, 2021, a fly ball that soared over McNeil.

Jiménez hit an RBI single four batters in against Quintana (0-1).

Andrus lifted a sacrifice fly in the second.

Quintana, a 34-year-old left-hander who pitched for the White Sox from 2012-17, signed a $26 million, two-year contract with the Mets as a free agent, then fractured a rib during spring training. He allowed two runs and six hits in five innings, struck out three and walked none, retiring eight of his final nine hitters.

Michael Kopech (4-8) allowed two hits in 5 2/3 innings, both to Omar Narváez, and got his first win since May 24. He had been 0-4 with a 3.66 ERA over seven starts, a stretch that included a brief injured list stint due to right shoulder inflammation.

Kopech rebounded after getting two outs and throwing 38 pitches Friday at Atlanta in his return from the IL.

Kopech struck out five and walked four, Aaron Bummer got five outs and Gregory Santos two. Kendall Graveman pitched a 1-2-3 ninth to finish off the four-hitter.

Narváez singled in the third and homered in the fifth, his first home run since signing a $16 million, two-year contract with the Mets during the offseason.

Alonso hit an RBI single in the eighth to snap a 0-for-15 skid.

White Sox 1B Andrew Vaughn sat out for the second straight game and an X-ray was negative. 

Lance Lynn (6-8, 6.06 ERA) opposes RHP Joe Ryan (8-6, 3.77) in the opener of a three-game series Friday in Minnesota.