The Briton was overwhelmed in a 6-1 6-1 thrashing.

Gauff was filmed smashing a racket after losing to Elina Svitolina in a clip that was widely broadcast.

The third seed slumped to a 6-1 6-2 defeat inside an hour at Melbourne Park.

The American needed nearly three hours to see off Ajla Tomljanovic under the lights.

The American led 4-0 in the second set but fell to a 6-2 6-4 loss

Sabalenka and Gauff lost just eight games between them in the fourth round.