First, a couple of shirtless men stood up in the stands holding a sign that read "France tramples on children's rights," according to the Mirror. The protesters chanted and called for the resignation of French President Francois Hollande.
During Rafael Nadal's turn to serve, a masked man bearing a lit torch ran onto the court, before he was quickly subdued by security. He had the words "Kids right" on his stomach, BBC News reported.
Watch the incident below:
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