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.

From the moment Amanda Anisimova stepped out on to Centre Court, you could see the tension etched across her face.

Anisimova suffered the ultimate tennis indignity of a double bagel, the thing that every player, whether an amateur, a junior pro taking their first tentative steps in the sport, or a WTA star like t...