CHICAGO — Bears quarterback Kyle Orton was taken from the field on a cart late in the second quarter today and the team said he would miss the rest of the game against the Detroit Lions because of a right ankle injury.

Rex Grossman started the second half for Chicago.

The Bears were trailing 23-13 when Orton scrambled to his right in the closing minute of the first half. Cory Redding hit him and Dewayne White fell on Orton as the quarterback was hitting the turf.

Orton got up and took a few steps, then crumbled to the ground. He was tended to for several minutes before being carried off. He was 8-of-14 passing for 108 yards.

The Bears also lost safety Mike Brown to a calf injury. He walked to the locker room with about a minute left in the first half, and the team said he would not return.