The Seahawks signed linebacker Jon Rhattigan, adding him to the 53-man roster after he played in each of the team's first three games as a practice squad elevation.
Rhattigan, who first joined the Seahawks as an undrafted free agent out of Army in 2021, has been a core special teams player since his rookie season, and played 57 percent of Seattle's special teams snaps through the first three games.
Because members of the practice squad can only be elevated three times in a season, adding Rhattigan to the 53-man roster was required for him to continue to be part of the team's game-day plans.
The Seahawks had an open roster spot, having waived receiver Cody Thompson on Wednesday.
The Seahawks and Giants face off for Monday Night Football on Oct. 2, 2023. Kickoff is set for 5:15 p.m. PT. Take a look back through history at the Seahawks' matchups against the Giants.
A pass intended for Seattle Seahawks' Paul Skannis (82) is about to be intercepted by Carl Banks, left, of the New York Giants during second quarter of Nov. 9, 1989 game at Giants Stadium, East Rutherford, N.J. (AP Photo/Ray Stubblebine)
New York Giants Larry Csonka leaves the game with bandaged knee, hurt running the ball against the Seattle Seahawks during the game, Nov. 28, 1976 in East Rutherford. (AP Photo/Harry Harris)
New York Giants wide receiver Ike Hilliard, right, cradles the ball in the end zone for a touchdown as Seattle Seahawks safety Marcus Robinson, rear, and cornerback Willie Williams, left, defend during the fourth quarter Sunday, Dec. 23, 2001, at Giants Stadium in East Rutherford, N.J. Hilliard scored with 20 seconds left in the game to give the Giants the 27-24 win. Looking on is Giants Joe Jurevicius (84). (AP Photo/Bill Kostroun)
Rodney Hampton (27) of the New York Giants is taken down for a 4-yard loss by Cortez Kennedy (99) of the Seattle Seahawks during the second quarter of NFL game at Giants Stadium in East Rutherford, New Jersey on Sunday, Oct. 25, 1992. (AP Photo/Bill Kostroun)
New York Giants quarterback Jeff Hostetler (15) heads for the endzone as he is pursued by Seattle Seahawks Natu Tutagaloa during the third quarter of 23-10 Giants win at Giants Stadium in East Rutherford, New Jersey Sunday, Oct. 25, 1992. (AP Photo/Kevin Larkin)
Seattle Seahawks quarter back Stan Gelbaugh (18) gets sacked by Lawrence Taylor (56) of the New York Giants for a 12-yard loss in the first quarter of NFL game at Giants Stadium on Sunday, Oct. 25, 1992 in East Rutherford. Giants' Eric Dorsey, rear moves in to help Taylor. (AP Photo/Kevin Larkin)
New York Giants defensive end Michael Strahan (92) returns a fumble 13 yards for a touchdown during an NFL game against the Seattle Seahawks at the Meadowlands in East Rutherford, N.J., Dec. 23, 2001. The Giants defeated the Seahawks 27-24. (AP Photo/NFL Photos/Evan Pinkus)
Seattle Seahawks wide receiver Bobby Engram (84) is tackled by New York Giants cornerback Ralph Brown after catching a pass for a 14-yard gain during the second quarter Sunday, Sept. 22, 2002, at Giants Stadium in East Rutherford, N.J. There was a penalty on Brown for defensive holding, which was declined by the Seahawks. (AP Photo/Bill Kostroun)
New York Giants' Jeremy Shockey, left, is brought down by Seattle Seahawks Marquand Manuel (33) and Bryce Fisher after a fourth quarter pass reception, Sunday, Nov. 27, 2005, in Seattle. Shockey led the Giants with 127 yards receiving . The Seahawks won in overtime, 24-21. (AP Photo/Elaine Thompson)
Seattle Seahawks' Shaun Alexander, left, looks for running room during an NFL football game against the New York Giants, Sunday, Sept. 24, 2006. The Seahawks said Monday, Sept. 25, 2006 that Alexander has a broken left foot and will be lost to the team for at least a couple of weeks. (AP Photo/Ted S. Warren)
New York Giants quarterback Eli Manning (10) loses the ball as he is sacked by Seattle Seahawks defensive end Patrick Kerney (97) in the second quarter of their NFL football game in East Rutherford, N.J., Sunday, Oct. 5, 2008. (AP Photo/Kathy Willens)
Seattle Seahawks Charlie Whitehurst (6) in action against the New York Giants in the first half of an NFL football game, Sunday, Nov. 7, 2010, in Seattle. (AP Photo/Elaine Thompson)
Seattle Seahawks wide receiver Sidney Rice (18) goes out for a pass while covered by New York Giants cornerback Corey Webster (23) during the NFL week 5 football game against the New York Giants on Sunday, October 9, 2011 in East Rutherford, New Jersey. The Seahawks won the game 36-25. (AP Photo/Paul Spinelli)
Seattle Seahawks wide receiver Bobby Engram (84) is tackled by New York Giants cornerback Ralph Brown after catching a pass for a 14-yard gain during the second quarter Sunday, Sept. 22, 2002, at Giants Stadium in East Rutherford, N.J. There was a penalty on Brown for defensive holding, which was declined by the Seahawks. (AP Photo/Bill Kostroun)
Seattle Seahawks quarterback Russell Wilson (3) fends off New York Giants cornerback Terrell Thomas (24) during the first half of an NFL football game, Sunday, Dec. 15, 2013, in East Rutherford, N.J. (AP Photo/Kathy Willens)
Seattle Seahawks running back Marshawn Lynch (24) during the game against the New York Giants during an NFL football game, Sunday, Nov. 9, 2014, in Seattle. (AP Photo/Ben Liebenberg)
The Seahawks offense does their "techno" touchdown celebration after Jimmy Graham's one-yard reception in the fourth quarter.
