The Broncos on Monday released six more prominent players from last season, including three defensive starters.
Gone are safety Marquand Manuel, defensive tackle Dewayne Robertson and linebacker Jamie Winborn — all three started at least 10 games last season — as well as defensive end John Engelberger, linebacker Niko Koutouvides and tight end Nate Jackson.
Robertson and Koutouvides were both brought in last offseason and were due significant bonuses this spring.
Manuel signed as a free agent last March and started 14 games at strong safety.
Winborn, who became a fulltime starter after Boss Bailey was placed on injured reserve in late October, had previously played for — and been traded by — new defensive coordinator Mike Nolan.
Engelberger spent four years in Denver. He started the first six games of 2008 before being replaced by Ebenezer Ekuban at left defensive end.
Jackson spent all six years of his career in Denver, switching from wide receiver to tight end in 2005. He finished both 2007 (groin) and 2008 (hamstring) on the injured reserve.
Lindsay H. Jones: 303-954-1262 or ljones@denverpost.com
