Coco Gauff's Olympic singles campaign ended in disappointment as she lost to Croatia's Donna Vekic in the third round, with a score of 7-6(9-7), 6-2. Gauff initially led 5-2 in the first set but faltered after a contentious line call led to a heated argument with the umpire. Despite the support from the crowd, Gauff struggled with her game, accumulating 21 errors compared to only 10 winners. Vekic's victory marks her entrance into the quarter-finals, where she will face either Maria Sakkari or Marta Kostyuk. Gauff remains in contention for medals in the women's doubles and mixed doubles events, partnering with Jessica Pegula and Taylor Fritz, respectively. This defeat follows another early exit for American player Jess Pegula, who lost in the second round.