The Denver Broncos signed guard Cameron Spikes and released defensive end Randy Garner concurrently. The unrestricted free-agent Spikes played in all 16 games with the Arizona Cardinals last year. At 6-4, 313 pounds, Spikes enters his seventh NFL season after playing for Arizona (2003-04), Houston (2002) and St. Louis (1999-2001). In 63 career regular-season games, Spikes has posted 30 starts.