Raiders place LB Brown on IR, sign FB Tonga

The Oakland Raiders placed linebacker Ricky Brown on injured reserve on Saturday.

To fill the roster spot, the team signed fullback Manase Tonga from the practice squad to the active roster.

Brown, a six-year veteran, will miss the rest of the season as he suffered a concussion in a Week 3 contest against the Jets and sat out last week's game against New England.

Tonga was signed due to starter Marcel Reece being questionable for Sunday's game at Houston with an ankle injury and Richard Gordon being out with a broken hand.