In addition to signing safety Patrick Chung, the Patriots announced the release of safety Antwain Spann on Monday.
Spann, 26, spent parts of the last three seasons on the team's practice squad as well as its 53-man roster. Spann appeared in 10 games for the Patriots last season, registering five tackles. In 19 games with the Patriots over the last three seasons, he recorded 13 tackles.
A native of Oceanside, Calif., Spann played at the University of Louisiana-Lafayette. He went undrafted after college before signing with the Giants on May 17, 2005.