Daniil Medvedev displayed erratic behavior during his opening match loss against Taylor Fritz at the ATP Finals in Turin, losing 6-4 6-3. His performance, marred by seven double faults and racquet-smashing incidents, led to a point penalty and boos from the crowd. Medvedev criticized the 'dead' tennis balls used on tour, suggesting they benefit players like Jannik Sinner. Despite his initial meltdown, Medvedev rebounded to defeat Alex de Minaur in straight sets, keeping his tournament hopes alive. Fritz's win marked his first against Medvedev and his 50th of the year, showcasing his ability to remain composed amidst Medvedev's antics.