Coco Gauff vs Simona Halep: What time is Wimbledon fourth round match? Plus Johanna Konta vs Petra Kvitová

Fifteen-year-old sensation Cori Gauff faces her toughest opponent yet in former No 1 Simona Halep, while Britain's Johanna Konta comes up against two-time Wimbledon champion Petra Kvitova