PHILADELPHIA — The Jets spent this week hoping Sam Darnold would return, only to get the deflating news Thursday night that their starting quarterback would miss his third straight game due to mononucleosis.

Now, they have to try to regroup and find a way to get their first win of the season, at Lincoln Financial Field against a 2-2 Eagles team that has Super Bowl aspirations.

Those don’t exist for the 0-3 Jets at the moment. They can’t even be thinking about the playoffs at this point. They just need something to go right in a season in which it feels like everything is going wrong. They had 105 total yards against the Patriots in their last game.

Another performance like that won’t just have them staring at 0-4, but also will demoralize them for another week.

Coach Adam Gase shook up the offensive line this week with expected lineup changes coming Sunday in hopes of finding a spark to get Le’Veon Bell and the offense moving the ball.

“I think, for us, to play against [Philadelphia], we have to do a lot of things right,” Gase said. “We have to be great up front, and that’s where it’s all going to start, and we have to be able to run the football. Our best player is back there. We’ve got to do a good job of giving him some running lanes and getting him the ball in the passing game, and we need to be more competitive. It wasn’t [against the Patriots]. It was hard to watch. It was hard to call. None of us did a good job that day.”

The Jets are 0-10 all-time against the Eagles, a quirky stat, but not one current players care about. They are focused on the 2019 record and desperate to get a victory. The players who were on the team last year have lost six straight games going back to December.

They will be missing key pieces again this week beyond just Darnold. Linebackers C.J. Mosley (groin) and Jordan Jenkins (calf) remain out.

Defensive lineman Leonard Williams said morale is not low because of the injuries.

“Definitely not,” he said. “That’s what we always talk about — so what, now what. We’re going to trust the guys who are in. That’s what we always talk about to trust the teammates that are playing.”