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Two NFL preseason games highlight Sunday's sports schedule, including Jaguars vs. Saints and Bills vs. Bears, making it the ideal time to use the latest Underdog Fantasy bonus code CBSSPORTS2. There is also a full slate of 15 MLB games, five WNBA matchups and three MLS matches. This Underdog Fantasy promo code varies by location, but includes a potential deposit match worth up to $1,000 or Play $5, Get $50. Regardless of your location, using the Underdog Fantasy bonus code CBSSPORTS2 will ensure that you get the Underdog Fantasy promo code available in your state. Click here to get the latest Underdog Fantasy promo code for new users:

How to claim the Underdog Fantasy bonus code on Sunday, August 17

After downloading the Underdog Fantasy app, here's how to get started and use the Underdog promo code CBSSPORTS2. Follow these steps to claim your Underdog Fantasy deposit match bonus. 

  1. How to get started: click the CLAIM BONUS button below to access the latest offer and be redirected over to Underdog or click here.
  2. How to enter the Underdog bonus code: click "sign up" and enter your information to create an account. Then tap or click the 'Add Promo Code' button. Type in CBSSPORTS2.
  3. How to activate the Underdog bonus code for new users: make a deposit of at least $10 into your Underdog account. If you have a deposit match bonus offer, your deposit balance will reflect the 50% match for new users. If you have a Play & Get offer, enter any contest of $5+ to activate your welcome bonus.

Get started here:

Best NFL Underdog Fantasy picks for August 17

(data comes via SportsLine's projection model)

Cairo Santos, Bears, 1.5 XP made - Lower (1.08x)

Santos kicked just one extra point and one field goal in last week's 24-24 tie with the Miami Dolphins. The veteran kicker has been reliable, connecting on 25 of 26 extra points last season, as well as 21 of 25 field goals. With limited chances given him by the Bears offense, the smart NFL prop is going lower than 1.5 extra points made. Pick it at Underdog:

Spencer Rattler, Saints, 0.5 passing TDs - Higher (1.04x)

Although he didn't find the end zone in last week's 27-13 loss to the Los Angeles Chargers, Rattler was 7-for-11 for 53 yards, including a long of 21 yards. Although not expected to start, he is expected to see action against the Jacksonville Jaguars. In seven games last season, Rattler completed 57% of his passes for 1,317 yards and four touchdowns with five picks. Look for him to have a good performance as he tries to impress the coaching staff by going over 0.5 passing touchdowns. Click here to sign up for Underdog Fantasy:

Luther Burden, Bears, 0.5 rushing + receiving TDs - Higher (1.12x)

Burden had a solid preseason debut and looks to build on that performance. Last week against Miami, the second round pick in the 2025 NFL Draft caught two passes for 29 yards. Last year at Missouri, Burden caught 61 passes for 676 yards (11.1 average) and six touchdowns. In three seasons at Missouri, he finished with 192 catches for 2,263 yards and 21 touchdowns. The smart play against against Buffalo is to take Burden to go higher than 0.5 rushing and receiving touchdowns. Combine picks for a parlay on Underdog Fantasy for a potential payout of 7.54x.

With football season around the corner, the SportsLine Projection model also offers picks for every NFL picks for every game on the slate, which you can use to help guide you in making NFL picks on Underdog Fantasy. You can also get NFL props and picks from some of SportsLine's top NFL experts like Adam Silverstein, who went 84-53-4 (+2577) on his last 141 NFL against the spread picks. Check them out and then take advantage of the latest Underdog Fantasy promo code -- CBSSPORTS2.