Gaither had come in for one down after left tackle Branden Albert was slow to get up. Gaither was called for a false start, pushing the Chiefs back 5 yards, and they eventually had to settle for a field goal. Kansas City wound up losing 13-9.
The 6-foot-9, 340-pound Gaither was once viewed as a cornerstone offensive lineman in Baltimore, where he started five postseason games. But injuries kept him out last season, and he was unable to reclaim the same form from early in his career with Kansas City.
His release leaves Steve Maneri as the only backup tackle.