The Pittsburgh Steelers announced a series of roster moves on Tuesday including the signing of LS Matt Dooley and DT Lavon Hooks.
Blanchflower, 25, is a former seventh-round pick of the Steelers back in May of 2014. He was unfortunately unable to make the 53-man roster coming out of the preseason during his rookie season, but was later signed to their practice squad.
The Steelers elected to bring him back on a future/reserve contract last January, but he was waived with the injury designation at the start of the preseason.
Blanchflower has yet to appear in an NFL game.