New York Giants quarterback Daniel Jones left Sunday's 30-6 loss to the Las Vegas Raiders in the first half because of a noncontact knee injury that could end his season.

The initial fear, sources told ESPN, is that Jones has a torn ACL in his right knee. An MRI has been scheduled for Monday to determine the full extent of the injury, but there is concern that this appears to be a long-term issue. Jones was making his return Sunday after missing the three previous games because of a neck injury.

"Tough. You never want your guys to go down," coach Brian Daboll said. "He's worked really hard to get back. It's unfortunate."