Underdog Promo Code: Play $5, Get $50 in Bonus Play for MLB Opening Day

This page may contain affiliate links to legal sports betting partners. If you sign up or place a wager, FOX Sports may be compensated. Read more about Sports Betting on FOX Sports. Opening Day is here, and the MLB season kicks off with a bang! New users can take advantage of the Underdog promo code FOXSPORTS to play $5 and get $50 in bonus play for the season opener, including the marquee matchup between the New York Yankees and San Francisco Giants. All eyes will be on Aaron Judge, the back-to-back AL MVP, as he leads the Yankees against a Giants team looking to start strong in the National League. From early home runs to pitching duels, Opening Day is packed with moments that could set the tone for the season. Claim your $50 bonus play after wagering $5 with the Underdog promo code FOXSPORTS and join the excitement of MLB Opening Day as the Yankees and Giants open the 2026 season. Underdog Claim the Underdog Bonus Code New York Yankees vs. San Francisco Giants – Game Details Team Performance (2025 Season) Offensive Production (2025 Season) Starting Lineups Yankees Lineup Giants Lineup​Underdog Promo Code: Play $5, Get $50 in Bonus Play for MLB Opening Day.