FLOWERY BRANCH, Ga. (AP) The Atlanta Falcons have re-signed defensive end Adrian Clayborn to a two-year contract and have added former Miami end Derrick Shelby with a four-year deal.

A day after making former Cleveland center Alex Mack the NFL's highest-paid player at his position, the Falcons turned their attention Thursday to shoring up a pass rush that's ranked no higher than 28th in sacks since 2012.

Their 19 sacks last season were fewest in the league.

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Clayborn, a five-year veteran, led Atlanta with 15 quarterback hits and was second with three sacks in 16 games. The former first-round pick of Tampa Bay signed a one-year contract with the Falcons last spring.

Shelby, a four-year veteran who's missed just one game in his career, had 3.5 sacks last season.

The Falcons released defensive tackle Paul Soliai, a two-year starter, on Wednesday.

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AP NFL website: www.pro32.ap.org and www.twitter.com/AP-NFL