WTA roundup: Top seed Alize Cornet loses in Romania opener

Egypt's Mayar Sherif toppled No. 1 seed Alize Cornet of France 6-2, 6-4 on Tuesday in the first round of the Winners Open in Cluj-Napoca, Romania.

Sherif won 78 percent of her first-serve points (32 of 41). She prevailed despite not hitting a single ace and having Cornet save 8 of 12 break points.

The Nos. 4 and 7 seeds in the draw also lost Tuesday. Italian fourth seed Martina Trevisan fell to Czech challenger Kristyna Pliskova 6-4, 6-4, and No. 7 Viktoriya Tomova of Bulgaria lost to Romania's Mihaela Buzarnescu 6-2, 6-3.

No. 2 seed Andrea Petkovic of Germany won when Romanian opponent Alexandra Dulgheru retired in the second set. No. 3 Ana Bogdan -- the highest-seeded player representing the host nation in the event -- took care of first-round opponent Panna Udvardy of Hungary 6-2, 6-4.

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Seventh-seeded Danielle Collins and Sloane Stephens prevailed in all-U.S. matchups, advancing to the second round in San Jose, Calif.

Collins got past Shelby Rogers 6-4, 6-3 after Stephens topped Caty McNally 6-4, 6-2.

Collins is just a week removed from winning the first WTA Tour title of her career, when she captured a clay-court championship at Palermo, Italy. Stephens owns six career WTA crowns, but none since the 2018 Miami Open.

Also earning first-round wins were eighth-seeded Yulia Putintseva of Kazakhstan, France's Kristina Mladenovic, the United States' Claire Liu and Australia's Ajla Tomljanovic.

--Field Level Media