NEW YORK — Memorable debuts apparently run in the Lombard family.

Shortly before top Yankees prospect George Lombard Jr. homered in his MLB debut on Tuesday night in the Bronx, his younger brother, Jacob Lombard, homered in his pro baseball debut with Single-A Jupiter.

“I haven’t talked to him yet, but I heard,” George Lombard Jr., 21, said after the Yankees’ 2-0 win over the St. Louis Cardinals.

“That’s pretty awesome. It’s probably really awesome for my parents. I would bet that they were watching the game on the phone. I was really excited for him, too.”

The Miami Marlins selected 18-year-old Jacob Lombard in the first round of last month’s MLB draft, three years after the Yankees used a first-round pick on George Lombard Jr.

The Yankees officially called their Lombard up to majors on Tuesday afternoon, a few hours before his younger brother suited up for the Jupiter Hammerheads for the first time.

The parallels didn’t end there.

Both brothers homered in their second at-bat on Tuesday night. Both homers were solo shots. And while the older Lombard faced the big league Cardinals, his brother played the Palm Beach Cardinals, which is St. Louis’ Single-A affiliate.

“They may want to head to Vegas tonight,” Yankees manager Aaron Boone joked.

George Lombard Jr. finished 1 for 2 with a walk and turned a pair of double plays at shortstop, saying afterward, “It’s a moment, a swing, a day I won’t forget.”

Jacob Lombard, also a shortstop, finished 1 for 4 with a walk.

Their parents — including dad George Lombard, the bench coach of the Detroit Tigers — were in the Bronx for Tuesday’s game. The eldest Lombard played six MLB seasons from 1998-2006 and hit eight home runs, the first coming in his sixth career game.

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