GAME PREVIEWS

SUNDAY'S GAMES Raiders (plus 9 1/2) at Houston, 10 a.m. Channel: 5 Channel: 13 Channel: 46 : Is there a more unpredictable team than the Texans? They should be up this week. TEXANS, 31-13 St. Louis (plus 9 1/2) at 49ers, 1:15 p.m. Channel: 2 Channel: 40 : The...