Spain booked their place in the quarter-finals of the 2026 FIFA World Cup after Mikel Merino scored a dramatic stoppage-time winner to edge past Portugal at Dallas Stadium on Monday night. The victory sends Spain to Los Angeles, where they will face Belgium on July 10 in a highly anticipated last-eight clash. Belgium secured their quarter-final berth with an emphatic 4-1 victory over United States in Seattle. Charles De Ketelaere starred with two goals, while Hans Vanaken opened his World Cup scoring account before substitute Romelu Lukaku added a late fourth. The defeat also meant the United States became the last remaining co-host nation to leave the tournament, following earlier Round of 16 exits for Canada and Mexico.Merino's remarkable scoring run continued with another decisive goal. After waiting more than three years to score his first international goal for Spain, the midfielder has now found the net nine times in his last 17 appearances for his country. Spain also achieved a historic defensive milestone by becoming the first team to record six consecutive clean sheets in FIFA World Cup history.For Cristiano Ronaldo, the defeat may mark the final chapter of an extraordinary World Cup journey. At 41, the Portuguese icon leaves the tournament after scoring 11 goals in 27 World Cup appearances and setting several historic records, including becoming the first men's player to score in six different FIFA World Cup editions. As the final whistle sounded, Ronaldo walked off the pitch to an emotional farewell, potentially bringing an end to one of the greatest World Cup careers the sport has ever witnessed.Here's a roundup of some of the most memorable fan moments from Monday's FIFA World Cup Round of 16 matches:APA little fan gestures before the start of the World Cup Round of 16 match between Portugal and Spain at Dallas Stadium in Arlington, Texas.ReutersPortuguese fans react during the World Cup Round of 16 match between Portugal and Spain at Dallas Stadium in Arlington, Texas.ReutersSpanish fan in his elements during the World Cup Round of 16 match between Portugal and Spain at Dallas Stadium in Arlington, Texas.ReutersElated Spanish fans during the World Cup Round of 16 match between Portugal and Spain at Dallas Stadium in Arlington, Texas.ReutersSpanish fans turns up in numbers during the World Cup Round of 16 match between Portugal and Spain at Dallas Stadium in Arlington, Texas.APA United States fan reacts during the World Cup Round of 16 match between the United States and Belgium in Seattle.APA Belgium fan reacts ahead of the World Cup Round of 16 match between the United States and Belgium in Seattle.APA US fan reacts following the World Cup Round of 16 match between the United States and Belgium in Seattle.APA young fan reacts during the World Cup Round of 16 match between the United States and Belgium in Seattle.ReutersBelgium fan reacts during the World Cup Round of 16 match between the United States and Belgium in Seattle.