A look at a memorable moment in Seahawks history that occurred on April 9:

2001: Levon Kirkland, a Pro Bowl linebacker from the Steelers, is signed in free agency. He finished third on the team with 101 tackles in his only season with the Seahawks. Kirkland was one of eight players to start at middle linebacker for the Seahawks during a seven-season stretch – joining Dean Wells and DeShone Myles (1998), Anthony Simmons (1999), George Koonce (2000), Isaiah Kacyvenski (2002), Randall Godfrey (2004) and Orlando Huff (2004) – before Lofa Tatupu was drafted in 2005.

But it has happened only once since the 1996 season that we examined in the eighth installment of our series of seasonal recaps. That was in 2001, when the linebacking trio of Anthony Simmons (123), Chad Brown (106) and Levon Kirkland (101) turned the trick.

Since then, the only time the Seahawks have had two players do it in the same season was in 2009 – when linebacker David Hawthorne (116) and safety Jordan Babineaux (106) each did it for the first time in their careers.

Here’s a look at the other triple-digit tackling trios in franchise history, as well as the two seasons when five players each produced at least 100 tackles:

1976: Free safety Dave Brown (111), linebacker Mike Curtis (107), middle linebacker Ed Bradley (101).

1978: Middle linebacker Terry Beeson (club-record 153), linebacker Keith Butler (122), linebacker Sammy Green (115), cornerback Cornell Webster (113), free safety John Harris (113).

1980: Linebacker Michael Jackson (136), Harris (119), strong safety Keith Simpson (110), defensive tackle Robert Hardy (103), Beeson (101).

1981: Jackson (141), strong safety Kenny Easley (107), Butler (100).

1993: Free safety Eugene Robinson (111), linebacker Terry Wooden (106), middle linebacker Rod Stephens (105).

1996: Middle linebacker Dean Wells (107), linebacker Winston Moss (106), strong safety Robert Blackmon (102).

2001: Simmons, Brown, Kirkland.

And, speaking of tackles and trios, five players have led the Seahawks in tackles for at least three consecutive seasons: Beeson (1977-79), Jackson (1980-82), Fredd Young (1985-87), Chad Brown (1997-99) and Lofa Tatupu (2005-08).

Robinson also did it four times, but not consecutively (1988-89, 1992-93); while Simmons did it three times, but not in a row (2000-01, 2003).