Humphrey signed with the Broncos' practice squad Wednesday, Aric DiLalla of the team's official site reports.
Humphrey appeared in all 17 regular-season games for Denver last season, but he only secured 13 catches on 19 targets for 162 yards and three touchdowns. However, it was enough to be brought back on a one-year deal. Even though wasn't able to secure a spot on the 53-man roster, he'll now have the opportunity to work his way back there.