Briggs (6-foot-4, 230 pounds), who was originally signed to Denver’s practice squad on Sept. 22, is a second-year player who spent parts of the 2009 and ’10 seasons on San Francisco’s active roster. He played in four games with the 49ers last year and totaled four special-teams tackles. He also played in the club’s opener against Seattle this season.
Briggs originally signed with San Francisco as a college free agent on April 30, 2009, from Bowling Green State University, where he was a two-time All-Mid-American Conference selection and the 2006 MAC Player of the Year.
A two-time all-league choice at Mt. Healthy High School in Cincinnati, he was born on Oct. 31, 1985. His first name is pronounced DIE-rell.
Riley (6-foot-3, 205 pounds), is a first-year player who spent time on Carolina’s practice squad this season. He spent the entire 2009 season on Baltimore’s practice squad after signing with the club as a college free agent from Duke University.
The Denver Broncos on Wednesday signed tight end John Nalbone and defensive lineman Mitch Unrein to their practice squad, it was announced.
Nalbone (6-foot-4, 255 pounds) is a second-year player who played two games for Miami this season and also spent time on Minnesota’s practice squad. He entered the NFL with the Dolphins as a fifth-round draft choice (161st overall) in the 2009 NFL Draft from Monmouth University and spent a portion of last season on the club’s active roster and practice squad.
He totaled 101 receptions for 1,079 yards (10.7 avg.) with nine touchdowns as a three-year starter for Monmouth, earning All-Northeast Conference honors following his senior season.
A four-year letterman at Lawrence High School in Lawrenceville, N.J., he was born on May 14, 1986.
Unrein (6-foot-4, 300 pounds) is rookie defensive lineman who spent the 2010 preseason with Houston after being signed by the Texans as a college free agent from the University of Wyoming.
--- Official Press Release Per the Denver Broncos