Jannik Sinner, the world number 1 and huge favorite at Roland-Garros, was eliminated Thursday in the second round of the tournament, overwhelmed by the heat and Juan Manuel Cerundolo, who won in five sets, 3-6, 2-6, 7-5, 6-1, 6-1. On the French side, Moïse Kouamé, a 17-year-old prodigy, continues to impress and reaches the third round after nearly five hours of play.