The Falcons signed Gaziano on Monday.
The Chargers placed Gaziano (undisclosed) on injured reserve Wednesday.
Gaziano (ankle) will compete for a spot on the initial 53-man roster during training camp, Daniel Popper of The Athletic reports.
Gaziano (ankle) is out Sunday against the Raiders,
Gaziano has been activated from the reserve/COVID-19 list Monday, Gilbert Manzano of The Orange County Register reports.
Gaziano (illness) was placed on the reserve/COVID-19 list Tuesday, Field Yates of ESPN reports.