Updated

The Packers have officially announced the re-signing of Sam Shields, who would have been one of the top cornerbacks available this offseason in free agency.

General manager Ted Thompson made it official in a statement Monday. The undrafted rookie in 2010 out of Miami started 14 games last season with 61 tackles, four interceptions and 16 passes defended.

Shields agreed to a four-year deal worth $39 million with a $12.5 million signing bonus. He has combined with Tramon Williams to form a solid cornerback tandem for Green Bay.

Shields posted on Twitter that he signed the deal Monday, but that this was "only the beginning."

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AP NFL website: www.pro32.ap.org