RENTON, Wash. (AP) — Lofa Tatupu has become the latest Seahawks star to go on the injured reserve list.
A team spokesman said Seattle's three-time Pro Bowl middle linebacker was having surgery to repair a torn left pectoral muscle Thursday in Alabama. Tatupu traveled there to consult with noted specialist Dr. James Andrews.
The defensive captain was injured in the first half of Seattle's loss to Arizona on Oct. 18 while trying to make a tackle.
Wednesday, six-time All-Pro left tackle Walter Jones went on injured reserve because of a surgically repaired left knee. The 35-year-old said he will attempt to play in 2010, though no one knows if he will ever play again following microfracture surgery in December and then an arthroscopic procedure on the knee in August.
The 26-year-old Tatupu did not miss a game in his first 3½ seasons in the NFL. He played through assorted injuries including concussions, a swollen knee, strained groins, a broken thumb and — earlier this season — a strained hamstring that eventually forced him out of a loss to Chicago on Sept. 27.
Sunday's game at Dallas will be his third absence in less than 12 months.
Tatupu will be replaced Sunday by David Hawthorne, an undrafted free agent making only his second career start.
Quarterback Matt Hasselbeck, Seattle's third ailing star, practiced after missing two consecutive workout days. The ribs he broke on Sept. 20 at San Francisco still aren't healed, but he and coach Jim Mora both say the three-time Pro Bowl passer will start against the Cowboys.
Hasselbeck said he feels "tight and sticky" in his torso as his ribs enter the final phase of healing.
"So, those are three pretty big topics," Mora said.