Todd Davis Jersey , Colo. (AP) — Former Bears cornerback Bryce Callahan agreed to a three-year, $21 million deal with the Broncos, reuniting with Denver coach Vic Fangio, who was his defensive coordinator in Chicago.Callahan is the second unrestricted free agent defensive back Denver has signed in free agency, joining former Houston Texans hard-hitter Kareem Jackson in the “No Fly Zone” Version 2.0.Callahan joined the Bears as a college free agent out of Rice University in 2015 and has 122 tackles Shane Ray Jersey , four sacks, four interceptions, 20 pass breakups and a forced fumble in four NFL seasons.He started 10 games and appeared in three more with the Bears last season when he posted a career-best 45 tackles to go with two sacks, two interceptions and six pass breakups. He allowed just one touchdown.The Broncos also re-signed tight end Jeff Heuerman, one of their own unrestricted free agents Justin Hollins Denver Broncos Jersey , to a two-year, $9 million contract Friday. The Arizona Cardinals are signing former Denver Broncos cornerback Tramaine Brocks, according to Mike Garafolo of the NFL Network.Brock played under new Cardinals defensive coordinator Vance Joseph last season in Denver when he was head coach of the Broncos. He appeared in 12 games with five starts, recording 23 tackles with six passes defended.The Cardinals also had cornerback Morris Claiborne in for a visit on Monday before electing to sign Brock.Brock had started 31 of 32 games over his final two seasons with the San Francisco 49ers. The 49ers released Brock after a domestic violence allegation was levied against him following the 2016 season. When charges were dismissed, Brock signed with the Seattle Seahawks for training camp before being traded to the Minnesota Vikings for the 2017 season. He appeared in 11 games with the Vikings Justin Hollins Denver Broncos Jersey , recording eight tackles in limited duty.He is entering his 10th season in the NFL after signing with the 49ers as an undrafted free agent out of Belhaven University of the NAIA in 2010