KANSAS CITY, UNITED STATES - JUNE 16: Lionel Messi of Argentina celebrates after completing a hat-trick during the 2026 FIFA World Cup First Stage Group J match between Argentina and Algeria at Arrowhead Stadium (Kansas City Stadium) in Kansas City, Missouri, United States on June 16, 2026. (Photo by Hakan Akgun/Anadolu via Getty Images). Lionel Messi turned 39 this summer, but shows no signs of slowing down as he continues to impress in the twilight of his career.