NEWCASTLE UNITED host European giants Barcelona on Thursday in a mouth-watering Champions League opener.And brand new William Hill customers who register an account and stake a tenner will be rewarded with a colossal £40 in free bets and bonuses to spend on football!Find The Sun’s betting publishing principles hereNewcastle vs Barcelona: Claim your £40 William Hill bonus*How to claim..William Hill £40 welcome bonusVisit the William Hill website HERE*Register an account using the Promo Code: G40Once your account is registered, deposit a minimum of £10 in your main accountThen place a bet with a minimum stake of £10 at odds of 1/2 or greater on any football marketOnce that’s settled, your account will be credited with £40 in free bets – 4 x £10!Newcastle vs Barcelona: Claim your £40 William Hill bonus*No William Hill account? No problem!This is your opportunity to take advantage of William Hill’s welcome offer, which is giving brand new customers a whopping £40 in free bets!If you’re new to William Hill, you can sign-up using the links provided on this page and then you can reap the rewards!Simply register an account using the Promo Code: G40 and deposit a minimum of £10 in your main account.After that, place a bet with a minimum stake of £10 at odds of 1/2 or greater on any football market. Once that’s settled – win or lose – your account will be credited with £40 (4 x £10) in free bets to use on the sportsbook.Newcastle vs Barcelona: Claim your £40 William Hill bonus**18+. Play Safe. Online only. For new UK register customers using promo code G40. Deposit & place £10 cash single bet (min odds 1/2) on sportsbook (excl. Virtuals). Get £40 in Free Bets (4x£10), valid for sportsbook (excl. Virtuals), 7 days expiry, must use in full (£10 each). Not valid with deposits via PayPal, Neosurf, Paysafe, Apple Pay, NETELLER, Skrill, ecoPayz, Kalibra/Postpay or WH PLUS Card. One per customer. Full T&Cs apply. www.gambleaware.org