Philadelphia Phillies are headed to the World Series for the 1st time since 2009 after winning the NLCS 4-1

PHILADELPHIA — Bryce Harper slugged his fifth homer of the postseason, a two-run blast in the eighth inning that turned Citizens Bank Park into a madhouse, and the $330 million slugger powered the Philadelphia Phillies past the San Diego Padres 4-3 on Sunday and into the World Series for the first the time since 2009.

Rhys Hoskins also hit a two-run homer to spark Philadelphia’s improbable run to the National League pennant and a shot at its first World Series championship since 2008.

Harper has made the monumental feat of hitting a baseball look so easy in the postseason, and he delivered with easily the biggest hit in his four-year Phillies career.

J.T. Realmuto began the inning with a single off reliever Robert Suarez and Harper lined a 2-2, 98 mph sinker opposite field into the left-field seats as another sellout crowd of 45,485 fans shook the stadium.

“I knew he was going to come with his heater,” the two-time NL MVP said during a TV interview. “Just tried to take the best swing I could and was able to do damage with it.”

The lefty-swinging Harper connected off a righty — the Padres had left-handed closer Josh Hader warming in the bullpen but didn’t bring him in.

Phillies reliever David Robertson was pulled after a pair of one-out walks in the ninth. Ranger Suárez made his first relief appearance of the season and retired Trent Grisham on a bunt and got Austin Nola — brother of Phillies ace Aaron Nola — on a routine fly to end it for a huge save.

Philly, get ready.

Harper, Hoskins & Crew are coming for a most improbable World Series championship.

The Houston Astros held a 3-0 lead over the New York Yankees in the ALCS entering Game 4, scheduled for Sunday night in New York. The Fall Classic will begin Friday night at the home of the AL champion.

Harper, who turned 30 last week, is batting .439 (18-for-41) with six doubles, five homers, 11 RBIs and 10 runs scored in 11 postseason games. He has hit in 10 straight and has reached base in 11 straight.

And the feared designated hitter can keep those streaks alive when he plays in his first World Series.

“To a certain degree, it’s getting overlooked because of who he is and the star that he is,” Phillies manager Rob Thomson said before the game. “He’s a guy that’s a big star that’s delivered. Can’t say enough about that.”

The Phillies finished third in the NL East at 87-75, 14 games behind the 101-win Braves this season, and were the last team in the majors to make the 12-team playoff field. After a 2-0 sweep of the NL Central champion St. Louis Cardinals in MLB’s newly created wild-card round, the Phillies needed only four games to knock out the Braves, the defending World Series champs.