The players union is looking into Jonathan Martin's situation in Miami but has not launched an official investigation into possible harassment of the offensive tackle by teammates.
Martin left the Dolphins on Monday to receive help for emotional issues, and it's unknown if he's expected back.
In a statement released Saturday, the union stressed its concern about players being provided a "safe and professional workplace." Martin reportedly left because of the way teammates treated him, with guard Richie Incognito cited in one report.
"The (union) believes that management has an obligation to ensure a safe and professional workplace," the statement read. "And we will continue to be in close touch with our player leaders and all players involved as the information develops."
When asked Friday if he has seen evidence of bullying or harassment, Miami coach Joe Philbin said: "This is something we take very seriously, and it will not be tolerated."
Goldson out: Bucs safety Dashon Goldson did not make the trip to Seattle and will miss today's game because of a knee injury. Goldson, who also sat out Oct. 24 against the Panthers, likely will again be replaced by Keith Tandy. Also, cornerback Danny Gorrer, out since the preseason with a groin injury, was activated from short-term injured reserve. To make room, first-year cornerback Bobby Felder was released. He was claimed off waivers from the Vikings earlier this season.
Coach hospitalized: Broncos coach John Fox was taken to a hospital in Charlotte, N.C., but the team said contrary to initial fears, he did not have a heart attack. Fox was playing golf when he felt light-headed. "He is being held at the hospital for testing and further observation," the team said in a statement it released.
Bears: Jay Ratliff, a four-time Pro Bowl defensive tackle released by Dallas last month, signed, espn.com reported.
Cowboys: Brian Waters, a six-time Pro Bowl guard, went on season-ending injured reserve with a triceps injury sustained last week against the Lions.
Packers: Receiver James Jones, out two games with a knee injury, returned to practice and is questionable for Monday.
Panthers: Running back Jonathan Stewart was activated from the physically unable to perform list and will play today. He hasn't played since November, when he sustained a right ankle injury that required surgery.
Saints: Linebacker Jonathan Vilma, who had arthroscopic knee surgery in August, was activated from injured reserve and is expected to start today.
Times staff writer Rick Stroud contributed to this report.