New York Giants quarterback Jaxson Dart will miss the remainder of the 2026 NFL season due to a knee injury.

Dart was injured on the first drive on Monday night against the Los Angeles Rams when his left leg bent awkwardly as he was hit by two defenders.

After initially saying it was in the neighborhood of a medial collateral ligament injury, coach John Harbaugh said on Tuesday the evaluation process for Dart was still ongoing.

An MRI revealed medial collateral ligament, posterior cruciate ligament and meniscus damage, according to a report by NFL Network.

Harbaugh was due to address reporters after practice later on Wednesday.

Losing the 23-year-old to a long-term injury is a significant blow in Harbaugh’s first season in charge, which began with a victory against Dallas at home in Week 1.

Jameis Winston will take over the starting role, beginning Sunday against Tennessee.

The Giants’ next five opponents have a combined 2-8 record. Winston is 3-9 in 12 NFL starts since 2024.

Winston and Jake Haener, who is on the practice squad, were the only QBs at practice during the portion open to reporters.

Haener, who played in eight games and started one for New Orleans two seasons ago, joined midway through training camp and stuck around over journeyman Brandon Allen.

Edge rusher Brian Burns, who sprained his left ankle late in the Rams game, was not on the field.

No 1 receiver Malik Nabers, who popped his shoulder back into place and returned Monday night, and starting left tackle Andrew Thomas, who limped off with a groin injury, were participating in the unpadded session.

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