Marc Cucurella received backlash from German supporters during his Real Madrid debut on Sunday.The World Cup winner joined the Spanish giants from Chelsea at the start of the summer transfer window in a €60 million (£51.8m) deal.After an hour, Yan Diomande and Cucurella both made their debuts, with Jude Bellingham getting his first minutes of pre-seasonAFPFollowing the player’s international triumph in America last month, the defender was handed an extended summer holiday.His first appearance for Real Madrid came against Schalke in a pre-season clash on Sunday.Cucurella played for a total of 30 minutes during the friendly, which ended in a 3-0 win for Los Blancos.The 28-year-old replaced Alvaro Carreras in the 61st minute, but was greeted by a hostile reception from the crowd at the Veltins-Arena.Why was Cucurella booed?The Spaniard was booed by the home fans in Gelsenkirchen every time he touched the ball.German supporters have had a distaste for the former Chelsea left-back since the Euro 2024 quarter-final between Spain and Germany.Cucurella angered the host nation by blocking a goal bound effort from Jamal Musiala with his hand.Referee Anthony Taylor opted against awarding a penalty, deeming the Spaniard’s arm to be in a natural position close to his body.La Roja went on to win the match and eventually win the tournament, but the decision sparked widespread outrage.UEFA later acknowledged that a mistake had been made and that Germany should have been awarded a spot-kick.Cucurella and Ibrahima Konate both joined Real Madrid from the Premier League this summerGettySome fans were so angry at the decision that they started a petition to get the game replayed, with more than 350,000 people signing it online.The hostile treatment has plagued the full-back in Germany ever since, including neutral fans whistling him during the Euro 2024 semi-final against France.Additionally, he was also booed during the Nations League final against Portugal in Munich last year.The full-back was jeered at Bayern Munich during their Champions League clash with Chelsea last September.The new Real Madrid recruit decided to speak positively about the milestone of making his debut for a historic club, though.He said: “I am very happy. Behind all this, there is a lot of work, and all the effort I’ve put in over the years has been worth it.Cucurella was jeered mercilessly following the Euro 2024 quarter-finalGetty“I’m very happy with everything that’s happening to me, and I hope it continues this way – winning titles. And above all, being able to enjoy this experience.”Cucurella has previously addressed the occasional booing, including after the Euro semi-final win against France.He said: “I realised it for the first time when my name was read out before the game and a lot of people whistled.“I thought about it a bit and then realised it was because of the handball situation.“I didn’t think much about it, but at the same time I was a bit sad that people came to the game just to boo a single player.“Some people wasted their tickets. They could have gone to fans who would have really enjoyed the game.”