The Raiders continue to look to bolster their defense via the free agent market.
Ian Rapoport of the NFL Network reports that the Raiders are among four teams interested in former Buccaneers cornerback E.J. Biggers.
The Buccaneers remain interested in bringing him back, while the Redskins and Dolphins have also put him on their radar.
Biggers has spent all three seasons of his NFL career with Tampa Bay after being selected in the seventh round in 2009. He recorded 51 tackles, one sack, two forced fumbles, and one interception in 13 games last season.