Arsenal head to Madrid for the first leg of their Champions League semi-final. The Gunners’ season began to fall apart in late March and early April, but they did enough to squeeze past Sporting in the previous round.With Mikel Arteta’s side now hunting just two trophies instead of four, new customers can still land a major haul with bet365. Signing up ahead of the Champions League semis will enable you to score £30 in free bets using our code ‘TSPORT’. Following our link will automatically apply our bet365 bonus code ‘TSPORT’ . Please note that this code is optional and will not change the bonus amount in any way.They face a dangerous Atletico side who knocked out fellow Spanish giants Barcelona in the quarter-finals. Diego Simeone’s charges have been known for their defensive shape and resilience in previous years, but this year they’ve been much more gung-ho – scoring seven goals in their play-off round and last 16 ties.Net even more value with bet365Once you’ve signed up to bet365, following our link, all you need to do is complete the signup process and place your first £10 bet on any sports market. Win or lose, you’ll have £30 in free bets land in your account as soon as it settles. With so many semi-finals and finals to look forward to in the coming weeks, it’s the perfect time to secure a bit more bang for your buck!Defences to be on topAtletico have been uncharacteristically sloppy defensively in the Champions League – they conceded nine times in the earlier knockout rounds against Club Brugge and Tottenham. In La Liga, however, they have once again been one of the toughest teams to break down. Only Real Madrid and Barcelona have conceded more than them. They did a much better job against the Catalans in the quarters, keeping a clean sheet in the first leg.Under 2.5 goalsMatch to end as a drawArsenal have once again had the best defensive record in the Premier League this season – conceding just 26 in 34 games. The same is true in Europe where they’ve only let in five goals in twelve games throughout the campaign.It’s set to be a low aggregate score.Understanding the offerTo qualify:Register as a new bet365 customer ahead of Atletico vs Arsenal (18+, UK only)If you follow our link, our bet365 bonus code – TSPORT – will be automatically applied. Please note that you don’t need to use this specific code to claim the bonus.Place a qualifying bet of at least £10 at minimum odds of 1/5 (1.20).Ensure your qualifying bet settles within 30 days of claiming the offer.You’ll get:£30 in free bet creditsCredited after the qualifying bet settlesValid for 7 days from creditKey terms and conditions of this bet365 offer Free bets must be used as single bets Minimum odds of 1/2 (1.50) apply to free bets Qualifying bet must be placed and settle within the offer period Certain payment methods excludedbets don’t qualify One free bet token per bet slip Read more about the 2025/26 football seasonPremier League winner oddsPremier League relegation oddsPremier League top scorer oddsChampionship promotion oddsAbout 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.Most read in BettingAtletico Madrid vs Arsenal betting tips - Gunners still dreaming of glorious seasonPunchestown Festival Day 2 Tips (Wednesday 29th April 2026)Cadillac Championship 2026 betting preview: odds, predictions and tipsPSG vs Bayern Munich super boost: Get EVS on Diaz to have a shot on target with Sky BetBOYLE Sports offer: NOW EVS Saka 1+ shot on target in Atleti vs Arsenal & £40 in free betsBest multiplier slots: Top 10 picks for 2026