After losing a five-set thriller to French teen Moise Kouame with a heavily partisan crowd, the Paraguayan said such a match "has to be refereed by a man" instead of a woman.

And he did it by coming back from 5-2 down in the fifth after leading Vallejo by two sets.

The 22-year-old makes his main-draw debut in a Grand Slam event Tuesday at Roland Garros.