FOXBOROUGH, Mass. - The New England Patriots announced the signings of unrestricted free agent OL Jamey Richard, rookie free agent TE Nick Melillo and seventh-round draft choice DB Alfonzo Dennard. Terms of the contracts were not announced.

In addition, the Patriots released WR Anthony Gonzalez.

Richard, 27, is a veteran of four seasons with the Indianapolis Colts after joining the Colts as a seventh-round draft pick (236th overall) in 2008 out of the University of Buffalo. The 6-foot-5 inch, 295 pounder has played in 48 regular season games with 11 starts. He has also played in four postseason games, including Super Bowl XLIV when the Colts played the Saints. Richard has played center and guard during his career. Last season, he played in nine games as a reserve and on special teams.

Melillo, 23, is a rookie free agent from Kentucky. The 6-foot-2 inch, 226 pounder played in 32 games over the last three seasons for Kentucky after transferring from Lindenwood University. He played in 32 games and caught 23 passes for 240 yards with one touchdown during his Kentucky career.

Dennard, 22, was selected by the Patriots in the seventh round of the 2012 NFL Draft with the 224th pick overall. The 5-10, 205-pound defensive back from Nebraska was named the 2011 Big Ten Defensive Back of the Year and First-Team All-Big Ten after his senior season. Last season, Dennard started in all 10 games that he played and finished the year with 31 total tackles and six passes defensed. After playing in all 12 games as a true freshman in 2008, he moved into the starting lineup early in the year as a sophomore in 2009.

Gonzalez, 27, was signed by the Patriots as an unrestricted free agent from Indianapolis on March 17, 2012. He was drafted by the Indianapolis Colts in the first round of the 2007 NFL Draft out of Ohio State. In five seasons with the Colts, the 6-foot, 193-pound wide receiver started 12 of 40 games and had 99 career receptions for 1,307 yards and seven touchdowns.