The Carolina Panthers on Monday signed running back Chris Ogbonnaya and waived running back Tauren Poole. Ogbonnaya spent most of the past three seasons with the Cleveland Browns. In 2013, he played in 16 games with seven starts for the Browns. He compiled 240 rushing yards on 49 carries and 343 receiving yards and two touchdowns on 48 receptions. Ogbonnaya entered the NFL in 2009 as a seventh-round draft choice with St. Louis. Starting Carolina running back DeAngelo Williams returned to the lineup Sunday after missing the previous two games with a thigh injury. He left the game in the second quarter with an ankle injury and was limited to 11 carries for 34 yards.