YANKS’ ACE FOLDS

Benintendi, Red Sox stun Severino

The Yankees turned to rolling ace Luis Severino to ride the supposed momentum of Friday’s stirring comeback victory over the Red Sox.

Of course, first-place Boston then pulverized the All-Star righty for eight earned runs and knocked him out in the fifth inning on Saturday, sending the Yanks to an unsightly 10-5 loss at the Stadium.

Red Sox rookie Andrew Benintendi crushed two homers and drove in six against Severino, who had won each of his previous four starts with a 0.70 ERA.

“He wasn’t executing his pitches today and made some mistakes,” Joe Girardi said of Severino. “He’d been so good and executing so well. We haven’t seen it for a while, but it just shows that he’s human.”

Gary Sanchez had clubbed a two-run home run against Boston lefty Drew Pomeranz in the first inning for the Yanks (61-54). Chase Headley and Jacoby Ellsbury added back-to-back homers in the ninth.

The Bombers, who slipped back to 4.5 games behind the Red Sox in the AL East, are slated to start rookie Jordan Montgomery against Cy Young frontrunner Chris Sale in Sunday night’s series finale.

AP Andrew Benintendi (r.) celebrates 2nd three-run home run with Eduardo Nunez as Red Sox rock Gary Sanchez and Yanks, and this time there is no Addison Reed meltdown to bail out Bombers.