Slayton signed a reserve/future contract with the Falcons on Monday, D. Orlando Ledbetter of The Atlanta Journal-Constitution reports.
Slayton remains without an NFL appearance since entering the league as a seventh-round draft choice of the Giants in 2019. He participated on Atlanta's practice squad throughout this season, and he'll likely fill a similar role in 2021 if capable of locking down a reserve spot heading into next September.