Jaxson Dart wanted back in the game. The Giants' medical staff didn't let him.
Dart left Monday night's game against the Rams with a left knee injury on the Giants' first drive and did not return, per a Pro Football Talk report. The same report says he wanted to go back out anyway.
ESPN reported Tuesday that sources believe the injury is a sprained MCL. The grade is the whole story. A low-grade sprain is typically a matter of weeks; anything higher and the conversation changes. The Giants haven't put a timeline on it, and until they do, treat every projection as a guess.
This isn't a depth-chart shuffle. The New York Daily News identified Dart as the Giants' starting quarterback, so Monday night cost New York its starter on the opening possession of a game the team had entered playing well. Everything downstream of the quarterback takes a hit in the meantime: receiver target shares, tight end usage, and the value of anyone you're starting in a Giants stack.
What to do about it: don't sell low on Giants pass-catchers this week. Injury uncertainty is the worst possible time to move a player, and one absence doesn't erase a season's worth of role. Check the wire for whoever takes the snaps in Dart's place. That's a name to monitor, not a name to start.
The competitive detail is genuine, and it's also the reason the Giants should keep making this call for him. A quarterback who lobbies to re-enter a game with a sprained knee is a quarterback who will do it again in a bigger spot, and the difference between a two-week absence and a season-ending one is often a player's own stubbornness. Dart's toughness isn't the story here. The Giants' willingness to protect him from it is.
I'd bet on a multi-week absence rather than a season-ender, and on New York being conservative with a player who just told them he wasn't.

