Are you looking for a leading platform providing exciting NFL playing opportunities, as well as potential rewards? If so, the Underdog site is the place for you. This incredible platform is currently offering new players a huge welcome offer of Play $5 Get $100 in Bonuses when they create an account and enter the promo code NDUNDOG. This is an excellent way to kick-start your time at the site.

• CLAIM UNDERDOG PROMOTION HERE

Additionally, the Underdog platform is a leading site within the industry, thanks to standout aspects such as competitive odds and a plethora of sports markets to suit all preferences. To redeem the Underdog offer in time for tonight's showdown between the Los Angeles Rams and the Seattle Seahawks, keep reading to find out more.

Underdog 'NDUNDOG' NFL Promo

Underdog is boosting tonight’s NFL action with a Play $5, Get $100 in Bonus Funds offer for new users. To qualify, simply register for an Underdog account, make a minimum $10 deposit, and submit a $5 entry on an eligible NFL pick. After your play is placed, $100 in bonus funds will be credited to your account.

The bonus can be used across Underdog’s NFL Pick’em contests, including player stat projections and game-based selections. Be sure to enter promo code NDUNDOG during sign-up. Available to users aged 18 and above in select states, this promotion adds extra value to every drive and touchdown.

NFL Week 16: Los Angeles Rams vs Seattle Seahawks

Tonight’s primetime clash shifts to the Pacific Northwest as the Los Angeles Rams visit Lumen Field to face the Seattle Seahawks in a pivotal NFC West matchup, kicking off at 8:15 PM ET. With division positioning and postseason implications in play, every series carries added importance under the Monday night lights.

The Rams will aim to establish an offensive rhythm through a balanced attack, combining a controlled ground game with precise passing to keep Seattle’s defense off guard. Meanwhile, the Seahawks aim to capitalize on their home-field advantage, leaning on an aggressive defensive approach and timely playmaking to swing momentum. With playoff hopes looming, fans can expect an intense, physical contest filled with momentum shifts, strategic drives, and late-game drama.

Underdog Bonus T&Cs

Must be 18+ (19+ in AL, NE; 19+ in CO for some games; 21+ in AZ, MA, and VA) and present in a state where Underdog Fantasy operates. Terms apply. See assets.underdogfantasy.com/web/PlayandGetTerms_DFS_.html for details. Offer not valid in MD, MI, NY, OH, and PA. Concerned with your play? Call 1-800-GAMBLER or visit www.ncpgambling.org; NY: Call the 24/7 HOPEline at 1-877-8-HOPENY or Text HOPENY (467369).

Underdog Legal States

Players must be located in the following legal Underdog states detailed by our experts below in order to successfully redeem the Underdog welcome offer.

• Alabama

• Alaska

• Arizona

• Arkansas

• California

• Colorado

• DC

• Florida

• Georgia

• Illinois,

• Indiana

• Kentucky

• Massachusetts

• Minnesota

• Missouri

• Nebraska

• New Mexico

• New York

• North Carolina

• North Dakota

• Oklahoma

• Oregon

• Rhode Island

• South Carolina

• South Dakota

• Tennessee

• Texas

• Utah

• Vermont

• Virginia

• West Virginia

• Wisconsin

• Wyoming

How to Claim the Underdog 'NDUNDOG' Bonus

To claim the attractive Underdog welcome offer, you must be 18 years of age or older and located in a legal state. Follow the step-by-step guide below to get started:

1. Firstly, click the link within this article to access the Underdog site.

2. Once on the interface, select ‘Sign Up’ to begin registration.

3. You must enter all required information on the form, including your full name, email address, and login details.

4. Next, you need to verify your Underdog account by selecting the link in your email inbox from the brand. 

5. You must fund your account to redeem the lucrative bonus and play at the site. To do so, visit the cashier section of the site. 

6. You may be required to choose a payment method and enter the amount you wish to deposit here.

7. The minimum deposit for the welcome offer $10, and the minimum play for the $100 in bonus funds is $5.

8. You must enter the promo code 'NDUNDOG' when prompted.

9. Once you have completed all of the above steps, the bonus offer will be granted to you.  

Responsible Gambling

If you or someone you know has a gambling problem and wants help, call or visit the Council on Compulsive Gambling:

• Gamblers Anonymous at 855-2-Call GA or www.gamblersanonymous.org

• CO, DC, IL, IN, LA, MD, MS, NJ, OH, PA, TN, VA, WV, or WY – Call 1-800-GAMBLER

• AZ – Call 1-800-NEXT-STEP

• IA – Call 1-800-BETS-OFF

• KS, NV – Call 1-800-522-4700

• KY – Call 1-800 GAMBLER, 18+

• MI – Call 1-800-270-7117 for confidential help

• MA – Call 1-800-327-5050

• NC – Call – 1-800-662-4357

• NY – Call 877-8-HOPENY or text HOPENY (467369)

DISCLAIMER: The information on this site is for entertainment purposes only. Gambling comes with its fair share of risks, and it is essential to recognize that when using online gambling sites.

While we review different gambling sites, you should check with local laws in your area before gambling online. Also, all gambling sites and guides are rated 21+ only.

The following free gambling addiction resources can be of help:

21+ Please Gamble Responsibly.  Gambling Problem? Call or text 1-800-GAMBLER

NCPG – ICRG – Gamblers Anonymous – Gambling Therapy