The Raiders signed safeties Matt Giordano and Josh Bullocks, according to their Twitter account.

Giordano, a fourth-round draft pick out of Cal in 2005, has played for Indianapolis, Green Bay, Atlanta and most recently was property of New Orleans.

Bullocks was a second-round pick out of Nebraska in 2005 who most recently played for Chicago, making 11 tackles last season.

The Raiders lost free safety Hiram Eugene to a disclocated hip. He underwent surgery and is expected to be placed on injured reserve. During Sunday’s practice, Stevie Brown went down in a heap with an ankle injury defending a long pass to Darrius Heyward-Bey.

Brown got up under his own power but was limping.

Undrafted free agent Zac Etheridge was also lost in the Arizona game with a knee injury.