Additionally, Denver acquired defensive tackle Brodrick Bunkley from Philadelphia in exchange for a 2013 draft choice and waived safety Nick Polk, cornerback James Rogers and wide receiver Marshall Williams.
Fells (6-foot-4, 272 pounds) is a fifth-year tight end who spent the last three seasons with St. Louis after originally signing with Atlanta as a college free agent from the University of California-Davis in 2006. In 42 career games (11 starts), he registered 69 receptions for 745 yards (10.8 avg.) and five touchdowns.
Rosario (6-foot-4, 250 pounds) is a fifth-year tight end who spent his first four NFL seasons with Carolina after being drafted by the club in the fifth round (155th overall) of the 2007 NFL Draft from the University of Oregon. In 62 career regular-season games (21 starts), he hauled in 82 receptions for 894 yards (10.9 avg.) and five touchdowns. He played one postseason game for the Panthers, totaling three catches for 28 yards (9.3 avg.).
Harvey (6-foot-5, 268 pounds) is a fourth-year defensive end who spent his first three seasons with Jacksonville, which drafted him in the first round (8th overall) of the 2008 NFL Draft form the University of Florida. With the Jaguars, he played 47 games (32 starts) and recorded 88 tackles (70 solo), eight sacks and five pass deflections, according to press box totals.
Bunkley (6-foot-2, 306 pounds) is a sixth-year defensive tackle who spent his first five seasons with Philadelphia after being selected by the Eagles with the 14th pick in the first round of the 2006 NFL Draft from Florida State University. In 76 career regular-season games (52 starts), he totaled 144 (111 solo), including six sacks, with seven passes defensed, according to press box totals. He also played seven postseason contests, tallying 13 tackles (11 solo) for Philadelphia.
Thomas (6-foot-3, 316 pounds) was re-signed by the club as an unrestricted free agent. He spent his first four NFL seasons with the Broncos and totaled 137 tackles (90 solo), one sack (3 yds.), two interceptions (9 yds.), three passes defensed and one fumble recovery in 64 games (23 starts). He joins Rubin Carter (1975-78) as one of two interior defensive linemen in Broncos history to play in every game during his first four professional seasons.