THURSDAY, 3:30pm: The Bills have added Minnesota defensive back Michael Carter to their undrafted free agent class, tweets Joe Buscaglia of WGR 550AM.

TUESDAY, 12:23pm: The Bills have signed nine undrafted free agents, the team announced today on its website. All nine of the newest Bills are defensive players. Here’s the full list:

• Derek Brim, S, Buffalo
• Deon Broomfield, S, Iowa State
• James Gaines, LB, Miami (FL)
• Damien Jacobs, DT, Florida
• Bryan Johnson, LB, West Texas A&M
• Darrin Kitchens, LB, Florida
• Kenny Ladler, S, Vanderbilt
• Darius Robinson, CB, Clemson
• Colby Way, DL, Buffalo