In an announcement that surprised almost no one, Brett Favre announced in today's post-game press conference in Detroit that he feels it is time to call it a career. And what a 20-year career it was.

Favre said he was finished after sitting out Minnesota's season-ending loss to Detroit with a concussion. He missed three of his final four games because of injury after starting an NFL record 297 straight games.

"It's been a wonderful experience for me," Favre said after watching the Vikings lose 20-13 to finish in last place in the NFC North. "This year did not work out the way we would have hoped, but that's football. I don't regret coming back. I enjoyed my experience here."

Favre says it was the wise choice not to play against the Lions. He didn't pass a concussion test until late in the week and didn't want to risk long-term damage by playing. He also acknowledged some will doubt that he is truly done after he came back from two retirements earlier in his career.

Favre says he has no regrets about returning for a 20th season, even though he finished with the lowest quarterback rating of his career (69.9); threw 19 interceptions; and was fined $50,000 for failing to cooperate with an NFL investigation into allegations of tawdry interactions with a game-day hostess when both worked for the New York Jets in 2008.

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