Group J will be under close watch, since it is where you will find Lionel Messi and the defending World Cup champions, Argentina.

World Cup 2026 Golden Boot odds: Kylian Mbappe up against Harry Kane, Erling Haaland and Lionel Messi - The game’s greatest goalscorers line up for tournament’s top individual honour

Saudi Arabia pulled off one of the biggest upsets in World Cup history by beating Argentina in Qatar four years ago. That was just the start. In the four years since the Qatar World Cup perhaps no other nation has done more to shake up the world’s most popular sport.

The greatest players have graced the World Cup and often lived up to top billing. Lionel Messi has been named player of the tournament twice, joining Ronaldo, Zinedine Zidane and Diego Maradona among the winners.

Argentina coach Lionel Scaloni said Lionel Messi is improving from muscle fatigue in his left hamstring and could play some minutes in the warmups before his team's World Cup debut on June 16.

Here's what the scene looked like at Sporting Kansas City's practice facility as Lionel Messi and Team Argentina had a training session.

The FIFA World Cup will bring together football stars from across the globe, ranging from legends to emerging talents.