Halep, who will become the new world number one if she makes the semi-finals, next faces Britain's sixth seed Johanna Konta. That's why when I think of those with the best drop shots they all tend to be modern players.
The next set was evenly fought going on serve to 6-6 and the tie-breaker saw Halep up a mini-break and just two points away from a win. Grass has never been Azarenka's strongest surface, but she has already shown great resolve to come back from one set down in two of her opening three matches, including against Britain's Heather Watson in the last round.
Victoria Azarenka knows. She might be the current world number 683 after taking a year off through injury and then to have son Leo, but she has spent 51 weeks as number one, topping the rankings for the first time in 2012. "If I get a chance I will tell her how well she played and wish her good luck".
Konta can also draw on sporting pedigree in her family, with one of her grandfathers having played football for Hungary during the 1950s.
Three-times Wimbledon champion Chris Evert questioned the lack of "equal representation" on the prestige courts, telling BBC Radio 5 Live: "I think all women would like to see three of each to go along with equal prize money".More news: Patton Oswalt Engaged to Actress Meredith Salenger
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But Konta stepped up when it really mattered in the tiebreak, snatched a break midway through the third set and secured a monumental victory under a roofed Centre Court.
Clearly laying down her bid for an appearance in any future celebrity version of Great British Bake Off, Konta said: "If I've got time, it will be a chocolate chip and banana muffin". In 2014, she switched her training base to Gijon in Spain working with her Spanish coaches Esteban Carril and Jose-Manuel Garcia.
Williams faces French Open champion Jelena Ostapenko in Tuesday's quarter-finals. I've played her before, so it's a lot different than today. He spent a bit of time on court with one of my pros, played some golf with me and seemed to enjoy his visit.
Here, we list a few things you should know about Konta.. "Is she from Australia?' I'm like, 'this is kind of awkward". "I've dreamed of it ever since I was a little girl, to be a grand slam champion".
Win she did, but not in the manner she or most of those in the audience would have liked.
Konta said she was "excited and humble" to be facing Venus Williams, a match that Wade predicted the Briton would win.