Romania's Ana Bogdan stormed back to defeat No. 2 seed Leylah Fernandez of Laval, Que., 1-6, 7-6 (2), 6-2 in the first round of Tennis in the Land on Tuesday in Cleveland.
Bogdan cruised to a 5-0 lead in the third set. Fernandez saved seven match points in a marathon seventh game, eventually pushing the set to an eighth, but Bogdan then finished the job, having capitalized on Fernandez's 11 double faults.
Czech third seed Katerina Siniakova and American sixth seed Peyton Stearns both needed three sets to advance. Siniakova rallied for a 6-7 (5), 6-3, 7-6 (5) victory over Japan's Sayaka Ishii, saving three match points in the ninth game of the third set as she dug out of a 5-1 hole.
WATCH | Fernandez loses to Romanian underdog Bogdan in Cleveland:
Stearns beat Japan's Moyuka Uchijima 6-0, 1-6, 6-1 despite committing eight double faults and saving none of the four break points she faced.
Elsewhere, Canada's Carol Zhao lost Croatia's Petra Martić in her women's single match at the Monterrey Open in Mexico on Tuesday.
Zhao, a Vaughan, Ont., resident, fell 6-7 (7), 6-3, 2-6 in the opening-round contest.
WATCH | Canada's Zhao falls in Monterrey opening round:
tennis
loss
Ana Bogdan
Petra Martic
Peyton Stearns