ATLANTA, June 22 -- Welcome to the World Cup, Lamine Yamal. Welcome to the World Cup, Spain. Teenage superstar Yamal scored 10 minutes into hisfirst start on football's biggest stage and Spain kick-started their campaign with the 4-0 demolition of Saudi Arabia on Sunday. The 18-year-old forward slid in at the far post to touch home a low cross for the opening goal here. He became the eighth youngest scorer in World Cup history and more importantly settled Spanish nerves after the team was held to a surprise 0-0 draw by Cape Verde in their opening game. In a tournament that has already seen Lionel Messi, Kylian Mbappe, Erling Haaland and Harry Kane get off to flying starts, Yamal's strike saw him join the party. The Barcelona winger is already considered one the world's top players and helped Spain win the Euro 2024 despite being just 16 years old when the tournament started. He is tipped to take overfrom Messi and Cristiano Ronaldo as the sport's biggest star but came into the World Cup with questions over his fitness after he missed the end of the season with a hamstring injury. Yamal, who was only usedas a second-half substitute against Cape Verde, was thrown in from the start against Saudi Arabia and wasted no time in making his presence felt. He had already repeatedly sliced through the Saudi defence before turning home Mikel Oyarzabal's cross. A full house at Atlanta Stadium was mainly filled with Spain fans who had roared in celebration just at the sight of Yamal emerging for the pre-game warm up. And the cheers were even louder as he raced away to celebrate his goal, dropping to his knees, praying and kissing the turf. Spain has advanced to four points in the standings while Saudi Arabia stay on one after two games each....