Jaxson Dart Listed Doubtful with Left Knee MCL Sprain

Giants quarterback Jaxson Dart is listed as Doubtful with a left knee MCL sprain sustained on September 21, placing his availability for this week's game in serious doubt. The injury is confirmed as an MCL sprain to the left knee; grade has not been publicly disclosed and is inferred here as likely Grade 1–2 based on the Doubtful designation and the absence of any season-ending or surgical language — a full Grade 3 MCL tear in a quarterback would typically trigger a more definitive absence designation.

Dart is roughly one day removed from the injury date, so the biology is still in its earliest phase. The MCL is a ligament with good intrinsic vascularity and a well-established healing trajectory. A Grade 1 MCL sprain carries a literature floor of 1–3 weeks and is often manageable within a week at the elite level. A Grade 2 partial tear pushes the window to 3–6 weeks. Until imaging results or a team update clarifies the grade, both windows remain in play.

For a quarterback, the left knee deserves specific context: for a right-handed passer, the lead (left) knee absorbs the rotational plant-and-drive forces of the throwing motion, meaning even a moderate MCL injury can affect throwing mechanics and footwork in ways that don't show up in straight-line functional testing. A Doubtful tag this early in the week — before the Wednesday–Friday practice trajectory has developed — should be taken seriously. Watch for practice participation updates Wednesday through Friday; a DNP-to-DNP trajectory would reinforce a likely absence, while any LP or FP by Friday would shift the calculus. Grade confirmation via team reporting would materially update this estimate.