Naomi Broady was branded the 'bad girl' of British tennis.
Former world number ones Venus Williams and Ana Ivanovic endured a humbling start to the season after the top two seeds were dumped out of the Auckland Classic in the first round by unheralded opponents.
Capping off a great day for India, Sania Mirza advanced to the third round of both the women's and mixed doubles events, while Rohan Bopanna and Purav Raja also won their respective mixed doubles matches at the Wimbledon in London.
Halep, the beaten finalist in the French Open last week, is the latest top player to pull out from the event after Czech world number three Karolina Pliskova opted to rest her injured elbow ahead of Wimbledon.
Indian tennis ace Sania Mirza and her Swiss partner Martina Hingis produced a sublime performance as they marched into the quarter-finals of the women's doubles event at Rogers Cup in Toronto on Friday.
A fired up Naomi Broady let her racquet do the talking as she stormed back to beat Jelena Ostapenko in an ill-tempered Auckland Classic clash marred by an on-court row after the Briton called for the Latvian to be disqualified.
Men's second seed Rafael Nadal starts against Israel's Dudi Sela while three-time champion Novak Djokovic faces American Tennys Sandgren.
Former world number one Victoria Azarenka was forced out of the Aegon Classic in Birmingham with a foot injury on Wednesday shortly after defending champion Ana Ivanovic suffered a shock defeat.
The Frenchman, seeded five, had no answer to left-hander Muller's swinging serve as he bowed out 6-4, 6-4.
After 17 trips to Flushing Meadows and six US Open titles Serena Williams did something on Thursday she had never done before -- win a match indoors.
Mixed reactions pour in as Osaka debate rages on.
IMAGES from the matches played on Day 2 of the Wimbledon Lawn Tennis Championships at All England Lawn Tennis and Croquet Club on Tuesday.