Olga Danilovic upset top seed Danielle Collins at Roland Garros in the first round on clay, winning 6-7, 7-5, 6-4. Collins entered as the heavy favourite with odds of 1.25 to Danilovic's 4.43, yet the Serbian player produced a composed performance to claim victory in a three-set encounter. After losing a tight opening set via tiebreak, Danilovic regrouped to take control in the second and third sets, breaking Collins's resistance with increasingly confident tennis. The result represents a significant scalp for Danilovic at the Grand Slam level and raises questions about Collins's form heading into the latter stages of the clay season.