The Falcons added two undrafted rookies to the roster and waived three others Sunday, with Auburn defensive back Jonathon Mincy and South Dakota offensive tackle Matt Huffer joining the fold, the team said. A collegiate cornerback, Mincy (5-10, 196) notched 70 tackles (55 solo), defended eight passes and hauled in one interception in 2014, earning second-team All-SEC honors from the league’s coaches. Huffer (6-6, 300) was a collegiate left tackle.