Christian Pulisic’s participation in the Nations League could be in doubt after suffering a hip injury. ( Photo)

LONDON — The good news for Christian Pulisic was that he scored yet again for Chelsea Saturday.

The bad news for the U.S. international midfield was that he suffered a hip injury and was replaced immediately after he found the net in the Blues’ 2-0 triumph over Crystal Palace in the English Premier League at Stamford Bridge.

That could sideline the 21-year-old midfielder from the upcoming two games in the Concacaf Nations League.

“The only frustration is that he comes off with a bit of a hip injury,” Chelsea manager Frank Lampard said. “He was going to get subbed before he scored his goal. He’s got a bit of a hip issue. But I’m hoping it’s not too bad because the way he’s in full flow at the moment is great to see.”

Pulisic apparently was injured when goalkeeper Vicente Guaita collided with him as he headed home a ball to lift Chelsea into a 2-0 advantage in the 79th minute.

“I just got into the box and the luckily the ball just bounced right to me. That helped us a lot,” Pulisic said. “We had a lot of chances to score. We deserved it in the end.”

It was the American’s fifth goal in his last three matches.

“I always believed he had huge talent and that he would be a great player for us. He has been first class for us,” Lampard said. “Scoring in the six-yard box is a huge thing for a young player.”

The USA plays Canada in a crucial Nations League match in Orlando Friday.

It will be up to U.S. head coach Gregg Berhalter to make a decision as whether to call in Pulisic.