Brown was originally selected in the third round (82nd overall) of the 2011 NFL Draft by the San Diego Chargers, where he played in 30 games with 16 starts.
During his tenure in San Diego, Brown totaled 60 career receptions for 801 yards. His best season came in 2013 when he finished with 41 catches for 472 yards and one touchdown in 16 games (12 starts).
The 5-foot-11, 190-pound wide receiver is originally from Rancho Cucamonga, Calif. and played in 44 games while attending San Diego State. He finished ranked third all-time in receiving 209 catches for 3,110 yards and 23 touchdowns.
The Raiders waived linebacker Bojay Filimoeatu to make room on the roster.