If you’re betting on Ravens vs. Dolphins on Sunday, you can use the welcome offer at Fanatics, which lands customers $300 in FanCash automatically once they place a first wager of $30 or more. FanCash is a currency that can either be used for sports betting or converted for Fanatics’ apparel site at a 1:1 rate.

Discover the top sports betting apps in the U.S. for NFL Week 8. Compare the best betting apps for bonuses, odds, and features with our expert guide.

With that in mind, the Week 9 slate opened with nine home underdogs, which should raise the antennas of any good bettor. The scales will even out at some point, so it's best to keep your head on a swivel.

New users can apply the promo in their bet slip for Ravens vs. Dolphins and place a minimum $1 bet on a wager with -500 odds or longer for 10 consecutive days. If that bet loses, you’ll get FanCash equal to the amount of your stake up to $200 per day. The FanCash will expire seven days after it is issued.

Sam Farmer makes his picks and predictions for NFL Week 9, with Josh Allen and the Bills defeating the Chiefs and the Chargers and Rams both winning.

The latest episode of All In With Ashley -- covering NFL Week 8 and the ongoing NBA betting investigation -- is now live.