Philip Rivers completed 21 of his 31 passes, yet tossed a pair of costly picks in the Chargers’ 31-20 loss in the Windy City on Sunday.
Vincent Jackson led the club with seven receptions for 165 yards and a touchdown.
The Chargers had just tied it at 17 on a 5-yard TD catch by Jackson early in the second half when Jay Cutler ran it in from the 1 after a 42-yard pass to Johnny Knox.
In a flash, it was a 14-point game.
Tillman stripped Ryan Mathews on the Chargers’ next play from scrimmage and made the recovery, giving the Bears possession at the San Diego 37.
Two plays later, a spinning Knox hauled in a 24-yard pass from Cutler in the left corner of the end zone with his back to the quarterback, making it 31-17.
Nick Novak kicked a 48-yard field goal on the first play of the fourth quarter, but the Chargers did not pick up a yard the rest of the way.
Rivers threw two misfires after Antoine Cason’s big interception return early in the fourth before getting picked off by Major Wright.
And after the Bears worked seven and a half minutes off the clock before punting, Corey Graham snagged an interception with just under two minutes remaining to send the Chargers to their fifth consecutive loss.
Next: Sunday November 27 vs. Denver Broncos, 1:15 PT.