The pinstriped bubble collapsed Friday night in Southern California when Aroldis Chapman stuck a very sharp knife in it.

For the second straight postseason, Chapman gave up a game-winning home run that sent the Yankees home deeply disappointed.

Last year it was Jose Altuve.

Friday night it was Mike Brosseau, who insisted his eighth-inning homer to left field off Chapman that carried the Rays to a 2-1 win in a deciding ALDS Game 5 at San Diego’s Petco Park was not revenge for Chapman buzzing his head with a 101-mph fastball on Sept. 1 at Yankee Stadium.

“It’s awful. The ending is cruel. It really is,’’ Aaron Boone said on a Zoom call after leaving a quiet clubhouse.

After Gerrit Cole gave up a run and one hit in 5 ¹/₃ innings in which he struck out nine, while pitching on three days’ rest, Boone went to Zack Britton in the sixth. He recorded four outs, and that led to Chapman getting the final out in the seventh, when he caught Brandon Lowe looking at a 99-mph fastball.

With one out in the eighth, Chapman battled Brosseau in a 10-pitch at-bat before the right-handed hitter drove a 100-mph heater over the left-field wall. In the ninth, Diego Castillo, pitching his second inning, retired the Yankees in order, with Gio Urshela’s liner finding third baseman Joey Wendle’s glove for the final out.

After the obligatory hugs and team pictures, the Rays celebrated in the dugout while playing, “New York, New York.’’ The Rays have spent the last several seasons getting under the Yankees’ skin. Their pitchers throw up and in. They took eight of 10 regular-season games from the Yankees and dethroned them as AL East champs.

“That’s their celebration,’’ Cole said when asked about it.

The Rays open the best-of-seven ALCS against the Astros on Sunday at Petco Park. The winner of that series goes to the World Series, a place the Yankees haven’t been since 2009, when they won it. They were favored to get to the World Series in March and again when spring training resumed in July. Then, in a baseball season heavily impacted by COVID-19, the Yankees were inconsistent.

As for Brosseau extracting a tractor-trailer sized helping of revenge for almost getting drilled in the head in September, he dodged the question.

“No revenge. Put it in the past,’’ said Brosseau, who entered the game as a pinch-hitter in the sixth inning and reached on an infield single off Britton. “Came here to win a series.’’

Brosseau’s homer was the dagger, but it hurt that Aaron Judge was unable to snag Austin Meadows’ home run in the fifth off Cole with two out and nobody on. More so because Judge hit his head on a padded overhang, which stymied his jump and killed a chance to reach up and bring the ball back.

“I didn’t make the play. I had a bead on it from the get-go. I knew it was going to be close to the wall. Just ran out of room and didn’t make the play,’’ said Judge, whose leadoff homer in the fourth gave the Yankees a 1-0 lead that Meadows erased. “That changes the game. I get out there and rob the homer it is a different outcome of the game. Tough one right there.’’

So, too, were the four Rays pitchers who limited the Yankees to three hits and one at-bat with a runner in scoring position.

“I felt like I let my team down. I had a terrible five games against those guys. They have good pitching and we have to do better,’’ said Luke Voit, who went 0-for-3 and finished 5-for-25 (.200). “It’s frustrating and it sucks. It’s fuel for the fire for next year.’’