Jackson went down with a noncontact injury while defending Mike White's 54-yard touchdown pass to Garrett Wilson with 5 minutes, 9 seconds remaining in the second quarter. The Bears had single-high coverage with Jackson back deep. The safety went down at Chicago's 30-yard line while backpedaling before planting his left foot in the turf.
Jackson could not bear weight on the foot and needed to be helped off the field by members of the Bears' athletic training staff. He immediately went into the medical tent for evaluation and was ruled out shortly thereafter. Jackson was later carted back to the locker room.
The 29-year-old safety has four interceptions through 12 games, which is tied for the third most in the NFL. Jackson had two tackles and a pass defended against the Jets at the time of his injury. He nearly picked off White earlier in the second quarter.
Meanwhile, Darnell Mooney, the Bears' top wide receiver, injured his left ankle in the third quarter and had to be helped back to the locker room since he couldn't bear weight on it. He didn't return to the game.
"It stinks," Bears quarterback Trevor Siemian said after the game. "As a player, terrible. But if you've spent any time with Darnell, he's one of the best dudes in the locker room. That's the part of the game that stinks. He's a strong dude. But like I said, guys like that, when anybody gets hurt, especially Darnell, it's tough to see."