THURSDAY, 4:26pm: USC tight end Xavier Grimble has also joined the Giants’ rookie free agent class, tweets Aaron Wilson of the Baltimore Sun.

TUESDAY, 1:54pm: The Giants have cut defensive back Chaz Powell and announced another four UDFA additions, according to a team release. Here are the newest Giants’ signings:

• Charles Barnett, S, Ohio State
• Emmanuel Dieke, DE, Georgia Tech ($7.5K bonus and $7.5K in other guarantees, per Aaron Wilson)
• Dan Fox, LB, Notre Dame
• Jordan Stanton, DE, James Madison

MONDAY, 4:47pm: The Giants have announced a series of roster moves, including a first step toward paring down the excess of quarterbacks on the depth chart. According to a press release, the team has released QB Rusty Smith and waived linebacker Allen Bradford, cornerback Junior Mertile and punter Jordan Gay. New York also signed five undrafted free agents.

Smith, a former Titan, inked a deal with the Giants last month shortly after the team added Josh Freeman to the roster to complement Eli Manning, Ryan Nassib, and Curtis Painter. He’ll immediately become an unrestricted free agent, while the other players will have to pass through waivers.

Here are the Giants’ five UDFA signings:

• Justin Anderson, LB, Louisiana-Lafayette
• Thomas Gordon, S, Michigan
• Eathyn Manumaleuna, DT BYU
• Kelcy Quarles, DT, South Carolina
• Kerry Wynn, DE, Richmond