Seahawks vs. Raiders betting preview and pick – Week 9's biggest spread

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The defending champion Seahawks have had some unexpected struggles this year, but are easily the biggest favorite of NFL Week 9 when they host the Raiders on Sunday (4:25 p.m. ET, CBS).

Oakland is the only winless team in the NFL, and getting a victory against its former AFC West rival is a huge longshot. 

The Line: Seattle -15, Total: 43

Line movement: The Westgate Las Vegas SuperBook opened the Seahawks as 14.5-point favorites on Sunday before moving up to -15 on Tuesday.  By midweek, the line ranged between -14.5 and -15.5, with a total between 43 and 43.5. For updated spreads and totals from around Las Vegas, visit our live odds page.

Trends that matter: Seattle is 0-3 ATS in its last three games....UNDER is 6-2 in Seattle's last eight at home....UNDER is 3-0 in Oakland’s road games this year.

Seattle having internal friction: The Seahawks (4-3 SU and 3-4 ATS) snapped a surprising two-game losing streak (30-23 versus Dallas, 28-26 at St. Louis) with a 13-9 comeback win at Carolina last Sunday. But they were solid 6-point favorites last game and are 0-3 ATS in their last three. 

Head coach Pete Carroll is dealing with off-the-field distractions with the trade of Percy Harvin and reported infighting among the team, including star quarterback Russell Wilson and running back Marshawn Lynch. Lynch is only averaging under 15 carries the last four games, which likely isn’t making him happy.

The Seahawks badly need a win in trailing Arizona by two games in the NFC West. The biggest favorite they’ve been this year is 9.5-points (home loss to Dallas) and they were 3-2 ATS as a double-digit home favorite last year. 

Oakland offense remains anemic: The Raiders (0-7 SU and 3-4 ATS) did a decent job covering spreads in their first five games (3-2), but have fallen short the last two versus Arizona (24-13 as 3.5-point home dogs) and Cleveland (23-13 as 6.5-point road dogs). 

Interim coach Tony Sparano took over the team three games ago after Dennis Allen was fired. He has a promising rookie quarterback in Derek Carr (82.0 rating), but a running game (69.6 YPG, ranked 32nd) that provides no balance. 

The Raiders have only scored more than 14 points once this season and are 31st in the NFL (15.0 PPG) for the year. They have a pretty good chance to cover this huge spread if they can get to that average on Sunday.

Injuries that matter: Seattle center Max Unger (foot) and cornerback Byron Maxwell (quad) are questionable.

Visit here for all Week 9 NFL injuries.

Weather: The forecast calls for showers with temperatures in the low-50s. Visit Weather Underground for the latest forecast.

Handicapping tools: Matchup analysis | Power Ratings | OAK team page | SEA team page

The Linemakers' lean: Oakland has scored 14 points or less in six of seven games this season, and now faces a Seattle defense that allowed just 16 points to Green Bay and 20 to Denver. The Seahawks’ offense has not been all that impressive, either, putting up just 13 in Carolina last week. The total is too high here, according to Kenny White, who offers lean on the UNDER.

Richie Baccellieri is on board with Kenny’s UNDER play, and also sees this as an opportunity for Seattle to get healthy. Also, Pete Carroll has revenge in mind, as Oakland beat the Seahawks 30-3 in his first year as coach.

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