Bell is without a timeline to return from surgery to address a hip flexor injury, ESPN.com reports.
Bell suffered the injury in the Chiefs' preseason opener, which ultimately led to him undergoing surgery. Head coach Andy Reid said Wednesday that it's an "unusual" injury, and Reid added that he doesn't expect to see Bell on the field in the near future. The tight end could end up on injured reserve next week, a move that Reid did not rule out.