Based on the wiki, the specific severity and diagnosis of Jaxson Dart's knee injury are not detailed yet.
Here's what's known from the available reports (from the Jameis Winston page):
- Dart exited the Week 2 Monday Night Football game against the Rams on the first drive after suffering an apparent knee injury (Sept 22, 2026).
- Jameis Winston replaced him and struggled (4-of-12, 58 yards, 0 TD, 1 INT).
- The wiki refers to it as an "apparent knee injury" but does not include an MRI result, specific ligament/tissue diagnosis, or return timetable.
Without a confirmed diagnosis, fantasy implications remain unclear. If Dart misses time, Winston becomes the starter — but Winston's Week 2 fill-in performance was rough. Keep an eye on Giants beat reports for an official update on the knee.