The 152nd-ranked Coric had a week of tennis he will never forget, defeating five straight top-20 opponents in Rafael Nadal, Roberto Bautista-Agut, Felix Auger-Aliassime, Cameron Norrie, and lastly Stefanos Tsitsipas, according to DPA.
The 28-year-old former world No.4 will surge back into the Top-20 on Monday after a week that saw her win eight matches in nine days, defeat three top-10 opponents, and overcame Kvitova to win her 10th career title, third of the season, and first WTA 1000 since 2017.
Jabeur has lost to Kvitova four times, including a 6-1, 6-2 victory in Cincinnati the year before.
Halep was set to face Veronika Kudermetova in the second round. Kudermetova received a walkover into the Round of 16 and will face either Paula Badosa or Ajla Tomljanovic.
Nadal's defeat ends his bid for a return to the top spot in the ATP Rankings this week. The World No. 3 will have another chance to leapfrog Alexander Zverev and Daniil Medvedev at the US Open.
The World No. 1 faced a tough test against the Dutch. He made a fast start behind an instant break but had to survive the second set to secure a 6-4, 7-5 victory and advance to the third round in Cincinnati.
Williams was broken in the first game of the match by 19-year-old Raducanu, who quickly dominated and went on to win 6-4, 6-0.
The world No. 5 produced high-quality tennis all week to back up his Olympic singles gold medal in Tokyo and capture his fourth tour-level trophy of the season. Zverev also became the first German champion in Cincinnati since Boris Becker in 1985.
Although Djokovic was expected to win, it was Daniil Medvedev who produced his best performance to emerge as the winner and beat the Serbian great 3-6 6-3 6-3.
With yet another entry in the semifinals, Djokovic has now made it to the semifinals in five successive tournaments that he has featured in.
