According to the wiki, Puka Nacua is listed as day-to-day heading into the Eagles matchup in Week 4. He's been dealing with a persistent hip/groin injury that caused him to miss Weeks 2 and 3 — it's not a structural hernia, but a muscular issue that needs ongoing management. (from the Puka Nacua page)
There's no definitive "will he play" answer yet — his status is uncertain and will likely come down to a game-time decision. On Fantasy Football Today, they said: "We hope Puka Nacua plays. He'll be in the lineups whenever he's active." — which matches the day-to-day nature of this thing.
Bottom line: If you're making a fantasy lineup decision, have a backup plan. He could play, but there's a real chance he sits another week.