Underdog Promo Code DEADXBT: MNF Week 9 Dallas Cowboys vs Arizona Cardinals

Published: Fri Oct 31 2025

There is no better time than Monday Night Football to use the latest Underdog promo code DEADXBT to get up to $100 in bonus funds or entries. Sign up to Underdog right now and use our promo code DEADXBT to unlock as much as $100 in bonuses or entries when the Dallas Cowboys host the struggling Arizona Cardinals on Monday night at the AT&T Stadium. With both teams desperate for a win, expect a high-intensity matchup that could be decided in the waning seconds of the game and the latest Underdog offer is here to make sure you don’t miss out on any of it.

MNF Week 9 Betting Lines & Odds

Despite losing five straight games heading into Monday, the Cardinals only come in as slight 3.5-point underdogs versus the Cowboys. Against the Packers in Week 7, Arizona kept the game close even without star quarterback Kyler Murray. The Cardinals are +135 to win outright and that could offer plenty of value for punters wanting to back the underdog considering that Arizona has beaten Dallas in their last four encounters. Dallas, on the other hand, opens as -161 favorites for Monday Night’s clash despite losing by 20 to the Broncos in Week 8. The Cowboys found themselves giving up big plays on both offense and defense which leaves the question on whether they can cover the spread against a Cardinals team who tends to keep the game close. The onus will be on quarterback Dak Prescott to rebound and find a more consistent offense if Dallas wants to return to its winning ways. Oddsmakers also expect a high-scoring affair with the over/under total set at 53.5 points which is quite surprising considering that both teams only combined for 47 points or less in five of their last six encounters. Sign up with Underdog and get in on the Monday Night action.

Underdog is bringing Monday Night Football action closer to you with its latest promo code. If you want to splash some action on the Cardinals-Cowboys matchup, then here’s how you can get going.

Download the Underdog app
Register using the promo code DEADXBT
Top up your account
Play at least $5 on any Underdog contest
Receive $100 in bonuses or entries

Your $100 bonus is only valid for 14 days so make sure to use it on the Monday Night Football game between the Cowboys and Cardinals. If you want more exciting promos like these, then make sure to visit our website so you’re in the know on all the latest NFL offers.

Why Trust Us & Affiliate Disclaimer

Loading …

21+ and present in OH. Gambling Problem? Call 1-800-GAMBLER.
Trading on prediction market apps carries risk and may not be suitable for everyone. You could lose the funds and fees you use to enter any transaction. Carefully consider whether participating in prediction markets is appropriate for you, based on your financial situation and experience. All trades and decisions are your own responsibility, and any information provided on this site is for general informational purposes only. Please note that prediction markets fall under the regulatory authority of the Commodity Futures Trading Commission (CFTC).