Cristiano Ronaldo (Getty Images)Cristiano Ronaldo is set to lead Portugal in one of the biggest matches of the FIFA World Cup 2026. Portugal will face Spain in the Round of 16 on Monday, July 6, at Dallas Stadium in Arlington, Texas. The winner will move into the quarterfinals and stay alive in the race for football’s biggest prize.The match could be one of the most important of Ronaldo’s legendary career. The 41-year-old recently confirmed that the FIFA World Cup 2026 will be his final appearance at the tournament. Portugal will rely on their captain as they take on a confident Spanish side starring new generation of talented players, including teenage star Lamine Yamal.Cristiano Ronaldo FIFA World Cup 2026 performances so farCristiano Ronaldo has once again delivered for Portugal at the FIFA World Cup 2026. The veteran forward has played all four matches and scored three goals. One of those goals came from the penalty spot. Although he is no longer at the peak of his career, Ronaldo continues to make an impact with his leadership and finishing ability.He has also achieved another historic milestone. Ronaldo became the first men’s footballer to score in six different FIFA World Cups. The record added another chapter to his remarkable international career.Portugal finished second in Group J with five points after beating Uzbekistan and drawing against DR Congo and Colombia. They then defeated Croatia 2-1 in the Round of 32 to book their place in the last 16.Cristiano Ronaldo’s FIFA World Cup 2026 statsStatRecordMatches played4Minutes played351Goals3Penalty goals1Assists0Historic achievementFirst men’s player to score in six different FIFA World CupsWhy Portugal vs. Spain FIFA World Cup 2026 R16 match matters so muchPortugal vs Spain is one of the biggest fixtures of the Round of 16. The Iberian rivals are meeting again after Portugal defeated Spain on penalties in the 2025 UEFA Nations League final.Spain enter the match in excellent form. They topped Group H before comfortably beating Austria 3-0 in the Round of 32. Their attack has looked sharp, while their defence has remained solid throughout the tournament.For Portugal, the stakes are even higher because this could be Ronaldo’s final World Cup match if his team loses. The legendary forward has won almost every major trophy during his career, but the FIFA World Cup remains the one title missing from his collection.The clash also highlights two different generations. Ronaldo, one of football’s greatest-ever players, will face Spain’s teenage sensation Lamine Yamal, who represents the future of the sport.The winner of the match will advance to the quarterfinals and face either the United States or Belgium. For Ronaldo, victory would keep alive his dream of ending his international career with the one trophy he has never lifted. For Spain, it is another opportunity to continue their impressive unbeaten run and move one step closer to World Cup glory.