The Tunisian was down 7-6, 4-0 in the second round match with the two-time defending champion when she retired - she fell towards the end of the first set and required a lengthy medical break.
Crowd favourite and third seed Halep coped with gusty conditions at the Aviation Club as she beat Lesia Tsurenko 6-3, 7-5, breaking seven times.
The 28-year-old saved six of nine break points and converted three of 11 to advance to a quarter-final against Viktoria Kuzmova after the Slovakian world No. 46 rallied from a awful start to defeat Sofia Kenin of the U.S. 1-6, 7-5, 6-2 in 2 hours, 16 minutes.
The Czech, who won the Dubai trophy in 2013, admitted that she came into the week somewhat unprepared, last playing at St Petersburg a fortnight ago.
"It's a little bit hard because I feel like people are staring at me, and not like in a good way".
The world No. 4 struggled with her serve, sending down 10 double faults, winning just 66 percent of points on her first serve compared with her opponent's 83 percent. "Yeah, I feel close to my highest level".
"That is a big motivation for me here", the Ukrainian said. Final set, I did little bit more. Alison Risk of the U.S. also advanced with a 6-2, 6-3 win over France's Alizé Cornet 6-2, 6-3.
Osaka wiped away tears as she spoke of the challenge of adjusting to her new celebrity.
"It means a lot, honestly", Mladenovic said after booking a match with a Spain's Carla Suarez Navarro in the last 16.
3m Nine killed in Kashmir gun battle
To prevent such a conflict, it is necessary to build a unified socialist movement of the working class throughout the region. Muscat: Pakistan's Prime Minister Imran Khan offered to investigate the Pulwama attack in a recently televised address.
British actor Albert Finney dies at 82
British actor Albert Finney puffs a big cigar as he sits in the back seat of a vintage cap on the set of " Annie " in NY . Albert Finney , who has starred in countless movies, has died at the age of 82, a family spokesperson has said .
Greece backs Macedonia's NATO accession
The two countries remained deadlocked over Macedonia's name for the duration of the younger country's existence. We did what is right", Tsipras told parliament during a debate on Friday.
Brad Pitt shows up at ex Jennifer Aniston's birthday party
A source told People website that Aniston was " very happy that he showed up" and "they hugged and chatted for a bit". Here's hoping Aniston had a wonderful time on her big night. "Our ray of sunshine, example of perpetual goodness".