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BetMGM bonus code SPORTSLINE: Get $150 in bonus bets when wagering on MLB, WNBA, Champions League on Tuesday, Sept. 16 at MGM

New users can get $150 in bonus bets when using the latest MGM promo code SPORTSLINE for MLB, WNBA and UCL games on Tuesday

ByPublished: Sep 16, 2025 3:41PM UTC . 3 min read

Sports fans interested in wagering on the day's action can use the latest BetMGM bonus code SPORTSLINE to secure one of two promotions being offered by the sportsbook. New users can get $150 in bonus bets if their first wager of $10 or more wins or up to $1,500 in bonus bets if their qualifying wager loses, depending on the state they live in. Sixteen MLB games anchor the sports schedule on Tuesday, with a doubleheader taking place between the Atlanta Braves and Washington Nationals. There's also a WNBA playoff game between the Las Vegas Aces and Seattle Storm, as well as the first round of Champions League group stage games. For the full terms and conditions of BetMGM's promotion and how to sign up, check out our BetMGM bonus code review.

Best bets for Tuesday

It felt like the Aces dynasty was done after a 111-58 loss to the Minnesota Lynx on Aug. 2. Las Vegas has not lost a game since that setback, rattling off 16 straight wins to close the regular season before capturing Game 1 against the Storm in the first round of the playoffs. The Aces, who won the opener 102-77, have a chance to close things out Tuesday night in Seattle. The Storm are hoping to stay alive, but they are 5.5-point underdogs at BetMGM in this game. WNBA expert Max Meyer has his eye on some player props in Game 2 for his best bets of the day.

The Chicago Cubs can still catch the Milwaukee Brewers at the top of the NL Central and overall league standings, even though they have a 5-game hole to make up. The Cubs will send Cade Horton (10-4, 2.70 ERA) to the mound on Tuesday as they hope to win the series against the Pittsburgh Pirates, who will counter with phenom Paul Skenes (10-9, 1.92 ERA). Chicago is a +113 underdog (wager $100 to win $113) in the latest consensus odds at SportsLine's Inside the Lines team model, but the Cubs win in 55% of simulations for a "B" grade play.

Responsible Gaming with BetMGM

Responsible gaming is important at BetMGM. The company has a live chat function where users can get in touch with the support team 24/7 and offers tools like setting betting activity alerts and using self-exclusion measures. BetMGM also has contact information for helplines and other resources on its platforms for users who need more assistance.

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Chinmay Vaidya
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