The team said Maualuga sprained his left ankle during practice last Thursday. He wasn't active for a 27-17 win over the Colts on Sunday. The Bengals are 4-2 heading into their bye this week, with their defense ranked among the league's best.
Maualuga declined to talk to reporters as he passed through the locker room on Monday, supporting himself with two metal crutches. Coach Marvin Lewis hasn't given any indication how long he'll be out.
The Bengals could get cornerback Adam "Pacman" Jones back after the bye. Jones said on Monday that he's been cleared to return from offseason neck surgery.