Jannik Sinner stunned in massive French Open upset as Roland Garros heat aids Juan Manuel Cerundolo

World number one Jannik Sinner was stunned in a major upset at the French Open at Roland Garros, losing to Argentine player Juan Manuel Cerundolo. The extreme heat conditions in Paris were cited as a contributing factor in the shock result. The defeat marks a significant early exit for Sinner, who was widely considered a strong title contender at the clay-court Grand Slam.