(FILES) Argentina's forward #10 Lionel Messi gestures as he takes part in the warm-up ahead of the 2026 World Cup round of 32 football match between Argentina and Cape Verde at the Miami Stadium in Miami Gardens on July 3, 2026. On August 12, 2026, Argentine football star Lionel Messi said he has "serious doubts" about whether he will continue playing soccer "for much longer," in an emotional farewell letter on Wednesday to his father and agent, Jorge Messi, who died on Friday at the age of 68. (Photo by CHANDAN KHANNA / AFP via Getty Images)