The 10-year veteran is primarily a special teams player. He turns 37 before the start of next season.
His minimum salary given his total years of NFL service will be more than $900,000 next season. Because he doesn't play in the base defense, Ayanbadejo might be pressed to find work in a role that typically is filled by younger and much cheaper backup defensive players.
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Arizona Cardinals linebacker Daryl Washington will sit out the first four games of the 2013 NFL regular season for violating the NFL's substance abuse policy.
The team announced that Washington would be able to take part in all offseason programs, as well as training camp and pre-season games. However, he will not be able to take part in the first four games or practices during those weeks.
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Linebacker Brian Banks travelled a winding road to the NFL, but he's officially a member of the Atlanta Falcons after a torturous journey to reach the professional ranks. Banks first confirmed the signing via Twitter on Wednesday.
Cleared in May 2012, Banks was wrongly jailed for five years but released when he was exonerated because the alleged assault victim that put him behind bars recanted 10 years after he was convicted.
Banks worked out for the Seahawks, Chiefs and Chargers last spring and participated in the San Francisco 49ers' rookie minicamp.
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Denver Broncos wide receiver Wes Welker told ESPN Radio that he's spoken to his new quarterback, Peyton Manning, as well as New England Patriots quarterback Tom Brady, since joining the Broncos.
Welker said he met Manning for dinner in Miami.
"We just kind of caught up and talked about the year and different things about the offense and stuff like that," Welker told "Mike and Mike in the Morning."
"I'll be working with him next week and start to get that process going."
Welker signed a two-year, $12 million contract with the Broncos last month, leaving the Patriots and Brady, one of his closest friends.
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Linebacker Stevenson Sylvester has signed a one-year contract with the Pittsburgh Steelers. A fifth-round pick by the Steelers in 2010, Sylvester has played in 41 career games with one start.
Primarily a special teams player, Sylvester has 23 career tackles and two forced fumbles in three seasons.
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Wide receiver Anthony Armstrong, a salary-cap casualty of the Dallas Cowboys last week, has re-signed with the team.
He could serve as a situational deep threat for quarterback Tony Romo.