Rune was playing Frenchman Quentin Halys on Court Philippe-Chatrier when the incident happened near the end of the third set of the Dane's 4-6, 6-2, 5-7, 7-5, 6-2 third-round win. Rune, the No. 10 seed, said the man took exception to the way he threw his towel down. He plays eighth-seeded Lorenzo Musetti of Italy in the fourth round.