Three former 49ers coaches are among the nine semifinalists announced Thursday for the Pro Football Hall of Fame.

Two-time Super Bowl-winning 49ers head coach George Seifert joins former 49ers assistant coaches Mike Shanahan and Mike Holmgren as semifinalists, the Hall of Fame announced.

The other semifinalists are Bill Arnsparger, Tom Coughlin, Chuck Knox, Dan Reeves, Marty Schottenheimer and Clark Shaughnessy.

Blue Ribbon Coach Committee members will discuss the semifinalists in detail during a virtual meeting on Nov. 19 to select a finalist to be considered by the full selection committee for the Hall of Fame Class of 2025.

Shanahan, Holmgren, Coughlin, Reeves, Schottenheimer and Shaughnessy were semifinalists a year ago when coaches and contributors competed in the same category. The Hall of Fame Board of Directors voted earlier this year to separate these groups and send a finalist from each category to the annual selection meeting to determine the new class.

Seifert has five Super Bowl rings from his time with the 49ers. He was defensive backs coach in 1981 and was responsible for getting three rookies – cornerbacks Ronnie Lott and Eric Wright and safety Carlton Williamson – ready to play.

Seifert was promoted to defensive coordinator in 1983 under Bill Walsh. The 49ers won two more Super Bowls with his innovative defense. He was hired as head coach in 1989 following Walsh's resignation. In eight seasons as head coach of the 49ers, the team posted a 128-98 (.766) record with seven playoff appearances and two Super Bowl titles.

Shanahan and Holmgren served as offensive coordinators under Seifert during their Super Bowl-winning seasons before finding success of their own as head coaches.

Shanahan won two Super Bowls with the Denver Broncos and compiled an overall record of 178-144 in 20 seasons as head coach. He also worked as a head coach with the Los Angeles Raiders and Washington.

Holmgren was hired as head coach of the Green Bay Packers in 1992. He posted an overall record of 174-122, including a Super Bowl victory with the Packers and a Super Bowl appearance with the Seattle Seahawks.

On Wednesday, the Hall of Fame announced the nine semifinalists in the Contributor category: KS “Bud” Adams, Ralph Hay, Frank “Bucko” Kilroy, Robert Kraft, Art Modell, Art Rooney Jr., Seymour Siwoff, Doug Williams and John Wooten.

• Editor's note: NBC Sports Bay Area's Matt Maiocco is a member of the 50-member selection committee for the Pro Football Hall of Fame.

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