The Chicago Bears had no one on their injury report just over a month ago when they played the New England Patriots.

Times have changed — painfully.

A handful of players joined quarterback Justin Fields on the sidelines with injuries in the Bears’ 31-10 loss to the New York Jets on Sunday, including a pair of team leaders in wide receiver Darnell Mooney and safety Eddie Jackson.

Bears coach Matt Eberflus said Monday that Mooney needs ankle surgery and will be lost for the rest of the season. Chicago is still having Jackson’s foot injury evaluated, but in the midst of a 3-9 season — and a five-game losing streak — the last thing the Bears need is to lose more players.

Mooney is the Bears’ leading receiver with 40 receptions, while Jackson went into Sunday’s game with a team-high four interceptions, tied for third in the NFL.

Losing Mooney deprives Fields of his favorite target — when he does return. Eberflus said Fields remains day to day with a shoulder separation.

The injury to Jackson, combined with a concussion Jaquan Brisker already had and a hamstring injury to Dane Cruikshank, left the Bears playing their only two remaining safeties Sunday: DeAndre Houston-Carson and rookie seventh-round pick Elijah Hicks.

Besides Mooney and Jackson, the Bears lost right tackles Riley Reiff (shoulder) and Larry Borom (ankle). Receivers Equanimeous St. Brown and Chase Claypool had minor injuries Eberflus didn’t want to reveal, and are day to day. Cornerback Kyler Gordon (concussion) remains out.

The Bears host the Green Bay Packers at Soldier Field on Sunday. The Packers beat them 27-10 at Lambeau Field in Week 2.