Sure, New York City FC are property of City Football Group, but they have been owned by the rival Red Bulls.

For the second straight year, the Red Bulls knocked NYCFC out of the U.S. Open Cup. And they rolled to a 4-0 laugher for the second straight meeting (the first an MLS contest on May 5). This one was a fourth-round U.S. Open Cup beating Wednesday night before a crowd of 9,496 at Red Bull Arena.

“It’s a frustration. … We make it really difficult for ourselves,” said NYCFC coach Patrick Vieira, whose team fell to 3-8-1 all-time against the Red Bulls and was taunted with chants of “Who’s your daddy?”

The Red Bulls got a brace from Daniel Royer and goals from Victor Bezecourt and Aaron Long, along with a clean sheet from keeper Ryan Meara. Bezecourt, Long and Meara are products of the USL Red Bulls II squad.

The Red Bulls and NYCFC are philosophic opposites: the Red Bulls’ high press versus NYCFC’s pretty soccer; the hosts’ player development against the visitors’ reliance on pricey imports such as David Villa.

For the second straight year, the Red Bulls, who reached last year’s U. S. Open Cup final, knocked NYCFC out of a competition that allows just five internationals.

NYCFC lost Rodney Wallace and Ronald Matarrita to international duty and Cedric Hountoundji to injury, and their lack of depth and young U.S. players hurt. The Red Bulls were missing Kaku, Tyler Adams, Tim Parker, Michael Murillo and Fidel Escobar, but eight of their starting 11 had benefited from seasoning with Red Bulls II, including six this year.

“It was a great night. This tournament means a lot to us and we want to make another run. It’s a chance to win a trophy,” Meara said. “Being so close last year, almost being able to taste it and losing, that sticks with us. It’s another opportunity and we’re going to put our best foot forward.”

NYCFC have lost all four Open Cup games in their history, and until they get a second team to develop their youngsters, they will be working at a disadvantage.

“Look at the defense between the two teams. Both teams had players who didn’t play often, but they look more sharp than us. The reason is they have the B team [that] allows those players to play every week,” Vieira said. “It was quite difficult for [our youngsters] because they didn’t play so many games. … What’s important for us is to try to have the second team which will allow those young players to play.”

Bezecourt scored 1:56 in. Teen defender Hassan Ndamn, in his first start with the big club, saved a Villa shot off the line. Long headed home a Marc Rzatkowski corner in the 52nd minute. Royer added goals in the 87th and 89th minutes. But this one was less about stars and more about development. It’s part of the reason Red Bull is unlikely to pay $20 million for Huracan’s Ignacio Pussetto.

“I challenged the team before the game,” said coach Jesse Marsch, who reports claim could be headed to RB Leipzig. “It’s a derby and a chance to showcase our team and our club and what we do here. No doubt our players went out and did that.

“So big sense of pride. … We are at the forefront of player development in this country. There’s no question.”

The Red Bulls will learn their fifth-round foe in a draw at 11 a.m. Thursday.