The Bengals have released guard Travelle Wharton, who tore up his right knee during the first preseason game last year and missed the season.
Wharton signed with the Bengals after spending eight seasons at Carolina, where he started 99 games at guard and tackle. The Bengals installed him as their starting left guard, but he hurt his knee on the third play of the preseason opener against the Jets and needed surgery.
Clint Boling, a fourth-round draft pick in 2011, took over for Wharton and started every game at left guard, including a playoff loss at Houston. The Bengals' running game ranked 18th last season.
The Bengals have kept their offensive line intact, trying to reach the playoffs for a third straight season, unprecedented in franchise history.