Sabalenka, the top seed at the Wimbledon Championships, was upset by No. 13 Amanda Anisimova in three sets on Thursday, and in the midst of their battle, Sabalenka apparently didn't love something the American pulled. In the second set, Anisimova, of the United States, celebrated a point before the ball went by Sabalenka.

As Anisimova closed in on victory in the final set, she sealed a hold of serve when one of her shots clipped the net cord and fell on the other side of the net, with Sabalenka scraping at the turf and ball but failing to return it.