US Open: Keys, Pliskova battle through as Radwanska bows out

Madison Keys and Karolina Pliskova edged into the fourth round at the US Open, as Agnieszka Radwanska and Jelena Ostapenko bowed out.

Keys recovered from a slow start to get past Elena Vesnina in a match that finished on Sunday morning at Flushing Meadows.

World number one Pliskova saved a match point as the Czech battled past Zhang Shuai.

As Elina Svitolina also progressed, Radwanska and Ostapenko were beaten.

KEYS GETS THROUGH

Keys reached the fourth round in New York for the third consecutive year, overcoming Vesnina 2-6 6-4 6-1.

The American 15th seed is considered a contender at the year’s final major, and 44 unforced errors from Vesnina helped Keys through.

Next up for Keys is fourth seed Svitolina, who was too good for Shelby Rogers 6-4 7-5.

1:45am finish for @Madison_Keys as she defeats Vesnina to reach R4!

She now holds the record for the 2 latest finishes at the #USOpen. pic.twitter.com/S4WwQOe2pC

— US Open Tennis (@usopen) September 3, 2017

PLISKOVA BATTLES

Pliskova had to save a match point to progress, battling past Zhang 3-6 7-5 6-4.

Last year’s runner-up, Pliskova will next face Jennifer Brady after the American overcame Monica Niculescu 6-3 4-6 7-6 (7-3).

Blessed to make it through to the 4th round and continue my 2017 #USOpen fight in INSPIRATIONAL #NewYork, City of Dreams! #WTA #Acequeen pic.twitter.com/6JrGD6tkSh

— Karolina Pliskova (@KaPliskova) September 2, 2017

RADWANSKA, OSTAPENKO UPSET

The 10th-seeded Radwanska went down to Coco Vandeweghe 7-5 4-6 6-4 after almost three hours.

French Open champion Ostapenko also bowed out, brushed aside by Daria Kasatkina 6-3 6-2 before a frosty handshake between the pair at the net.

Progressing to the fourth round were Lucie Safarova and Kaia Kanepi.