The Vikings signed Moreau on Monday, Mike Garafolo of NFL Network reports.
Moreau started in 11 of 16 regular-season games for the Broncos last season, recording 46 tackles (33 solo), seven passes defended and one interception. The 2017 third-round pick out of UCLA brings much-needed depth at corner after Mekhi Blackmon suffered a season-ending torn ACL injury in the first practice of Vikings training camp, while fellow corners Byron Murphy (knee - MCL) and Shaquill Griffin (leg) are also dealing with injuries.