A.J. Green will be out indefinitely as he suffered a setback in his recovery from a left ankle injury.

Green experienced swelling following Monday's off-week practice.

"For me, just gotta make sure I feel comfortable going out there and pushing it," Green said Thursday. "For me, just gotta make sure I gotta take care of me first before anything else."

Green has not played since he tore multiple ligaments in his left ankle during the Bengals' first practice of the preseason.

The Bengals have yet to win a game this season.