(FILES) Argentina's forward #10 Lionel Messi reacts after losing the 2026 World Cup football tournament final match between Spain and Argentina at the New York/New Jersey Stadium in East Rutherford on July 19, 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 August 7 at the age of 68. (Photo by PATRICIA DE MELO MOREIRA / AFP via Getty Images)