Yes, Messi is at the 2018 World Cup. Lionel Messi is one of the greatest football players of all time, and he is representing his native Argentina at this year's World Cup. Messi has been playing for Argentina since he was 18 years old, and he has since become one of the most recognizable faces in football.
At the 2018 World Cup, Messi will look to lead Argentina to their first title since 1986. Messi has been a key contributor in the team's qualifying campaign, and he will be expected to carry them through the tournament. He is one of the most talented players in the tournament, and many fans are looking to him to lead Argentina to victory.
Messi is also one of the most marketable players in the tournament, and his presence is sure to attract more attention to the World Cup. He is widely considered to be the best player in the world, and his presence in the tournament will help make it even more exciting. With Messi leading the way, Argentina is sure to make a deep run in the tournament.