Ravens' Kyle Hamilton ruled out vs. Bengals with ankle injury - ESPN

BALTIMORE — All-Pro safety Kyle Hamilton was ruled out for the second half of Thursday night's game against the Cincinnati Bengals, which left the Baltimore Ravens without their best defensive back.

Hamilton injured his left ankle with 1:09 left in the first half, turning it without making contact with anyone. He limped off the field and then headed to the locker room.

It was a big loss for a Ravens unit that ranks last in the NFL in pass defense, allowing 280.9 yards per game entering Thursday.

Hamilton is the Ravens' best all-around defender. Through nine games, he ranked second in tackles (67) while totaling 5 passes defensed, 5 quarterback hits and 2 sacks.

Ar'Darius Washington replaced Hamilton, who has missed three games in his three-year career.

The Ravens next play at the first-place Pittsburgh Steelers on Nov. 17.