Argentina begin their World Cup defence against Algeria in Kansas City on Tuesday. The South American giants are chasing a historic back‑to‑back triumph, while the Desert Foxes return to the tournament for the first time since 2014.With the world champions stepping onto the biggest stage, BetMGM are offering new customers the chance to score £40 worth of free bets. To grab this deal, sign up via our link, deposit £10, and place a £10 qualifying bet; the free bets will land as soon as it settles.Currently first place in world rankings, Argentina cruised through CONMEBOL qualifying, topping the standings by nine points. Lionel Messi is playing in his sixth World Cup – and will celebrate his 39th birthday during the competition. Around him, Julian Alvarez, Lautaro Martinez and Enzo Fernandez provide a blend of youth and experience.Algeria arrive as one of the tournament’s great unknowns. They breezed through African qualifying, winning 8 of 10 games and scoring 24 goals. Riyad Mahrez, now 35, is heading to what he has called his last World Cup, while Mohamed Amoura top‑scored in qualifying with 10 goals.How to unlock the £40 packageTo grab this offer, simply head to BetMGM via our link and register. Deposit £10 using a debit card and place a single £10 qualifying bet at odds of evens (2.0) or higher. Once it settles, you’ll receive 4 x £10 free bets – 2 sports bets and 2 bet builders (min 4 legs, odds 4.0 or higher). Free bets are valid for 7 days.This promotion is a huge boost ahead of a Group J opener where the champions will look to lay down an early marker, and the Algerians aim to prove they belong on the biggest stage.Messi’s final dance to begin in styleArgentina lost their opening game in Qatar 2022 and won the tournament – but they won’t want a repeat scare. Messi has already scored in four different World Cups and Algeria’s ambition to attack in numbers may leave gaps that Alvarez and Martinez can exploit.Argentina to winOver 2.5 goalsExpect Argentina to control possession and create plenty of chances. Mahrez and Amoura will threaten on the counter, but the champions have too much quality.How to claim BetMGM’s World Cup offerTo claim BetMGM’s scorching offer, follow these steps:Register as a new BetMGM customer ahead of Argentina vs Algeria (18+, UK only)Deposit £10 or more using a debit cardPlace a single £10 qualifying bet at minimum odds of evens (2.0) within 7 daysOnce the bet settles, you’ll receive 2 x £10 sports bets and 2 x £10 bet builders, valid for 7 daysYou’ll receive:2 x £10 Sports Bets (any sportsbook market, min odds evens)2 x £10 Bet Builder Free Bets (min 4 legs, odds 4.0 or higher)All free bets valid for 7 daysKey terms and conditions of this BetMGM offer Debit card deposit required (certain other methods excluded). Qualifying bet must be at odds of evens (2.0) or higher. Free bets expire 7 days after being credited. Bet builder free bets require a minimum of 4 legs at odds of 4.0 (3/1) or higher. Void, cashed out or unsettled bets do not qualify. One offer per customer, household and IP address. Read more about the 2026 World CupWorld Cup 2026 oddsWorld Cup 2026 betting offersWorld Cup 2026 group winner tips & predictionsEngland squad & lineup predictionsAbout the authorNathan HillNathan Hill is an experienced sports writer who obsessively follows football – both the round ball and American kind – as well as range of other sports including F1, basketball, darts and snooker.Commercial content notice: Taking one of the bookmaker offers featured in this article may result in a payment to talkSPORT. 18+. T&Cs apply.Remember to gamble responsiblyA responsible gambler is someone who:Establishes time and monetary limits before playingOnly gambles with money they can afford to loseNever chase their lossesDoesn’t gamble if they’re upset, angry or depressedGamcare – www.gamcare.org.ukFind our detailed guide on responsible gambling practices here.For help with a gambling problem, call the National Gambling Helpline on 0808 8020 133 or go to www.gamstop.co.uk to be excluded from all UK-regulated gambling websites.