The main rival of the Romanian woman, Dane Caroline Wozniacki, who lost in the second round of the tournament series Grand slam to Russian Ekaterina Makarova, Halep guaranteed the title of the first racket of the world after the competition. Denmark's Caroline Wozniacki reacts afte loosing her second round match against Russia's Ekaterina Makarova.
The unseeded Makarova stormed into a 5-1 first set lead, which she eventually took 6-4.
After trailing 5-1 in the third set, Wozniacki broke twice when Makarova served for the match. Then, she was beaten by Lucie Safarova, who she is drawn to meet next.
"There's so many things that I want to improve on, but that's kind of how I always feel", Williams said in her post-match press conference. I'm sure she's seen me play a lot!
Williams is still working her way back up to full speed following the birth of her daughter a year ago, but is already looking a threat at the tournament.
Should they continue in the same vein, the American sisters could meet each other in the semi-finals.
Wozniacki complained about a swarm of insects on court and asked for repellent spray which seemed to sting her into action as she won five games in a row before claiming the second set. "I have huge respect for Caroline for the results she has made until today, but the first round of Wimbledon is never easy, as everyone is always a little nervous".
Russian Federation v Croatia quarter-final
It was a dramatic end to the match for Subasic who went down with what appeared to be a hamstring injury late in regulation time . The winners will play England in the semi-finals at the Luzhniki Stadium in Moscow on Wednesday.
Croatian giant Ivo Karlovic, the oldest man in major tennis, hammered down 61 aces only for his 39-year-old legs to fail him in an epic 6-7 (5-7) 3-6 7-6 (7-4) 7-6 (7-4) 13-11 four-hour collapse against German Jan-Lennard Struff. "I told myself that, I forgot it and started over".
"I mean, it's just about winning the match".
But the world No. 2 is probably asking herself why she continues to struggle at Wimbledon after being ousted by a familiar and ever unsafe foe, Ekaterina Makarova, 6-4 1-6 7-5 on Wednesday. "I'm out. That's it", said Wozniacki, who actually won more total points, 94-91.
"For her to keep this level, I would be very surprised if you saw her go far".
Big upsets are not uncommon in sport, especially in an individual game like tennis, and the last three days have been a good example of that.
But what set her loss apart - more than the gritty slugfest of a match - was Wozniacki's unsporting response. The No. 9 seed, at 38 the oldest woman in the draw, came back to beat 141st-ranked qualifier Alexandra Dulgheru of Romania 4-6, 6-0, 6-1.
"I don't think it had any impact", she said, according to the broadcaster.
Milos Raonic, the 2016 finalist, sits in Federer's half and blasted 34 aces in his 7-6 (7-4) 7-6 (7-4) 7-6 (7-4) victory over Australia's John Millman.