Coco Gauff staved off defeat for a second time at the Omnium Banque Nationale, rallying from a set and a break down to defeat Veronika Kudermetova, 4-6, 7-5, 6-2.
The top seed has struggled for consistency since winning her second Grand Slam title at Roland Garros last month, but found her fighting form when she needed it most to hold off Kudermetova after two hours and 32 minutes on Center Court.
Back at No. 2 in the WTA rankings, Gauff played inspired tennis to topple world No. 1 Aryna Sabalenka on the terre battue, but went 0-2 on grass, crashing out of Wimbledon in the first round. Her kick-off to the US Open swing nearly ended in similar fashion before the American rallied to defeat Collins in a third-set tiebreaker.