Ons Jabeur, of Tunisia, reacts after defeating Camila Osorio, of Colombia, during the first round of the U.S. Open tennis championships, Tuesday, Aug. 29, 2023, in New York. AP
Jabeur, chasing a first Grand Slam crown after three agonising defeats in finals since 2022, opened her US Open campaign with a 7-5, 7-6 (7/4) victory on the Louis Armstrong Stadium.
The 29-year-old looked to be struggling during a tense first set, complaining to the chair umpire that she was having difficulty breathing after Osorio fought back from 4-1 down to level at 4-4.
Jabeur needed treatment from medical staff after going 5-4 down in the first set, and appeared to have her blood pressure taken during a timeout.
She then rallied to take the first set and appeared to poised to clinch victory after holding two match points in the second set while 5-3 up.
However Osorio rallied to stave off defeat, and went on to level at 5-5 after breaking Jabeur.
Jabeur broke back immediately to take a 6-5 lead but was then broken once again to send the second set to a tie break.
Jabeur proved too strong for Osorio in the breaker, however, and will now face the Czech Republic's Linda Noskova in the second round.
(For more sports news and updates, follow Ahram Online Sports on Twitter at @AO_Sports and on Facebook at AhramOnlineSports.)