The Falcons have re-signed defensive end Derrick Shelby, according to agent David Canter (on Twitter). He returns on a one-year deal. 
The Falcons released Shelby earlier this month in a move that saved them $3.25MM against the cap with $2.5MM left in dead money. He’s back with the team less than three weeks later, but on a cheaper deal.
Shelby was a starter right out of the gate in Dan Quinn’s defense after signing a four-year, $18MM contract with Atlanta in 2016. However, his first season with the Falcons was cut short by injury. last year, he appeared in all 16 games with 14 starts and managed just one sack while also playing on the interior.
The Falcons’ defensive front hasn’t changed much in Shelby’s 19 days away from the team. Atlanta lost Adrian Clayborn to the Patriots and Dontari Poe to the Panthers in free agency, but they have yet to add any new defensive linemen.