The Cleveland Browns' offensive line, which has started the same five players in each of the first eight games, suffered a setback Saturday when right guard Seth McKinney was placed on injured reserve, ending his season. A six-year veteran, McKinney suffered a shoulder injury in last Sunday's overtime victory against the Seattle Seahawks. This marks the second straight season that McKinney, 28, will finish on the injured reserve list. He missed the entire 2006 season with the Miami Dolphins because of a disk injury to his neck. Despite that injury, the Browns signed McKinney as an unrestricted free agent this spring, and he has played well as the team revamped the offensive-line unit. A third-round choice of the Dolphins in 2002, McKinney, a former Texas A&M standout, has appeared in 69 games in his career, 42 of them as a starter.