Report: Raiders sign CB David Amerson to four-year extension

The Oakland Raiders have reportedly given David Amerson a raise with his new four-year contract extension.

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The Oakland Raiders have reportedly signed cornerback David Amerson to a four-year contract extension, according to NFL media's Ian Rapoport.

The deal is reportedly worth $38 million with $18 million guaranteed, Rapoport reports.

The Raiders first acquired Amerson off waivers from the Washington Redskins, who drafted him in the second round of the 2013 NFL draft. 

• Miller’s extension illustrates rising emphasis on elite D

Amerson went on to have a break-out season season in which he recorded 58 tackles, 25 pass defenses and four interceptions in 14 games for Oakland. One of the interceptions was returned for a touchdown.