Packers' Jermichael Finley walking

Green Bay Packers tight end Jermichael Finley suffered a bruised spinal cord in his neck Sunday and was placed in an intensive care unit in a Green Bay-area hospital, but took to Twitter on Monday and said in a series of tweets that he is being moved out of ICU and is able to walk.

Nevertheless, Finley's continued evaluation will be an extensive process, according to league sources, with his return indefinite.

Finley will seek further medical opinions after he is discharged from the hospital, and a source said that with the team's blessing and support, his short-term and long-term prospects for playing again will not be hastened. One source said Finley's return to the field is "obviously secondary" to his overall health.

Packers coach Mike McCarthy wouldn't put a timeline on Finley's return, saying: "This is something that needs to be seen by more than one doctor."

McCarthy said he spent time Sunday night with Finley at the hospital.

"Jermichael is very, very upbeat, very positive," McCarthy said. "Always has a smile on his face, so I mean he's focused on what's most important. That's his health and his family."

Finley was injured at the end of a 10-yard reception when he took a hit to the head from Browns safety Tashaun Gipson. The game was delayed for six minutes while medical personnel attended to Finley.

It was the second time this season Finley was knocked out of a game. In Week 3 at Cincinnati, he sustained a concussion when safety George Iloka hit him in the helmet. Iloka was not penalized on the play but was fined $15,000.

ESPN senior NFL analyst Chris Mortensen, ESPN.com Packers reporter Rob Demovsky and ESPN.com Browns reporter Pat McManamon contributed to this report.