The Browns placed Bell (hip) on injured reserve Tuesday.
Head coach Kevin Stefanski told reporters Monday that Bell's hip surgery is season-ending, Mary Kay Cabot of The Cleveland Plain Dealer reports.
Bell won't return to Sunday's game at Jacksonville due to a right hip injury.
The Browns signed Bell from the practice squad to the active roster Wednesday, Zac Jackson of The Athletic reports.
Bell signed with the Browns' practice squad Saturday, Daniel Oyefusi of ESPN.come reports.
The Browns waived Bell on Thursday, Mary Kay Cabot of The Cleveland Plain Dealer reports.
Bell (quadriceps) was a limited participant in practice Wednesday, Scott Petrak of the Elyria Chronicle-Telegram reports.
Bell (quadriceps) did not practice Monday, Mary Kay Cabot of The Cleveland Plain Dealer reports.
Coach Kevin Stefanski said Monday that Bell (quadriceps) will return to practice this week, Patrick Warren of the Browns' official site reports.
Bell has not participated in practice since injuring his quadriceps in the Cleveland's preseason opener against Green Bay, Kelsey Russo of the the Browns' official site reports.