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CARDIFF CITY STADIUM hosts an all-Welsh curtain-raiser tonight as the Championship season kicks off under the lights in the capital. Newly-promoted Cardiff welcome a Wrexham side who came agonisingly close to the play-offs last term, and both arrive smarting from very different opening weeks. Cardiff bounced straight back from relegation, sealing automatic promotion as League One runners-up with 91 points, finishing behind champions Lincoln City but a full 14 points clear of third-placed Stockport County. Brian Barry-Murphy’s side are already off the mark this season too, beating Swindon Town 3-2 in the Carabao Cup, with Yousef Salech grabbing a first-half brace before summer signing Jack Moylan curled in a debut winner from the bench. Wrexham, meanwhile, endured a flat return to competitive action, beaten 1-0 away at Middlesbrough as Will Lankshear‘s acrobatic finish just after the hour settled it. Phil Parkinson pointed to his side’s lack of a clinical edge afterwards, and there’s a cruel irony hanging over the Red Dragons this season: their seventh-placed finish last term left them two points short of the play-offs, but under the expanded six-team format introduced this season, seventh would have been enough. With bragging rights and three opening-day points on the line, new punters can get involved by claiming a huge 300% welcome offer using our bet365 bonus code. Now, let’s check out all the key details before the opening whistle. The offer for Cardiff vs Wrexham Sign up before kick-off to secure a brilliant £30 free bet package perfect for this Championship opener. Bet £5 > Get £15 in Free Bets Bet £10 > Get £30 in Free Bets Simply click our link and the bet365 bonus code SUN365 will be applied automatically. Please note that although adding the bonus code is optional, doing so will not increase the final amount of free bets deposited into your wallet. The betting angle: Can Cardiff’s makeshift back line survive a derby? Cardiff head into their Championship return with a crisis at centre-back. Will Fish is facing around three months out following a hernia operation, while Calum Chambers and Dylan Lawlor are both sidelined with no return date set, leaving Barry-Murphy to hand Perry Ng, a right-back by trade, an emergency role alongside Gabriel Osho against Swindon with no centre-back cover whatsoever on the bench. Having shipped six against Midtjylland in pre-season and two to a League Two side last week, that makeshift backline now faces a step up in class. Wrexham have the personnel to exploit exactly that, even without Player of the Season Josh Windass, who remains sidelined by the injury that also cost him pre-season. Anthony Patterson is set for his debut in goal after arriving from Sunderland, and while Parkinson’s side have gone three matches without a goal, they were creating openings at the Riverside without converting them. A back line built out of full-backs is a far kinder proposition than Middlesbrough’s. Expect an open, physical derby where Cardiff’s home form and Salech’s threat keep them dangerous, but where Wrexham’s superior quality eventually tells against a defence operating well outside its comfort zone. Our tip: Under 2.5 Goals The longshot: Cardiff to win 1-0 & Jack Moylan to score anytime How to use the bet365 bonus code Click here to navigate to the bet365 registration page. Fill in your details, and the bet365 bonus code will be automatically applied if you follow our link. Add £5 or £10 to your wallet using a Debit Card (it’s best to hold off on using Apple Pay or PayPal for this initial transaction to guarantee your bonus eligibility). Place a qualifying wager on Cardiff vs Wrexham at odds of 1/5 (1.20) or higher. Once your wager is settled, bet365 will credit your account with triple your deposit amount in Free Bets. 📺 How to watch Cardiff vs Wrexham Date: Monday, 17th August, 2026 Kick-off: 8:00pm BST Venue: Cardiff City Stadium, Cardiff TV Channel: Sky Sports Main Event, Sky Sports Football Highlights: Sky Sports app, YouTube About the author Craig Mahood Craig Mahood is an expert in sports betting and online casinos and has worked with the company since 2020. He joined the Betting & Gaming team at The Sun in June 2022 and works closely with the leading bookmakers and online gaming companies to provide content on all areas of sports betting and gaming. He previously worked as a Digital Sports Reporter at the Scottish Sun, covering Scottish football with particular focus on Celtic and Rangers, As well as football, he has covered horse racing, boxing, darts, the Olympics and tennis for the Sun. 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