Australia's world number one Ashleigh Barty scrapped her way into the third round of Wimbledon on Thursday beating plucky Russian opponent Anna Blinkova 6-4, 6-3 in 90 minutes. 

Barty was not at her best serving several double faults and making unforced errors regularly against a 22-year-old opponent who was far from over-awed by being on Centre Court or Barty's top-ranked status.

Barty, though, having battled right arm and left hip injuries this year eventually prevailed, breaking Blinkova's serve to take the match.

The Australian, who has never got further than the fourth round at Wimbledon, plays Katerina Siniakova of the Czech Republic.

"She pushed me incredibly hard," said Barty.

"A few points here and there it could have been a different story."

Tennis: Wimbledon results

Results from day 4 of Wimbledon on Thursday (x denotes seeded player):

Men

2nd rd

Christian Garin (CHI x17) bt Marc Polmans (AUS) 7-6 (7/3), 6-2, 2-6, 7-6 (7/5)

Roberto Bautista Agut (ESP x8) bt Miomir Kecmanovic (SRB) 6-3, 6-3, 6-7 (3/7), 3-6, 6-3

Aljaz Bedene (SLO) bt Yoshihito Nishioka (JPN) 6-1, 6-0, 6-2

Alexander Zverev (GER x4) bt Tennys Sandgren (USA) 7-5, 6-2, 6-3

Cameron Norrie (GBR x29) bt Alex Bolt (AUS) 6-3, 6-1, 6-2

Women

2nd rd

Katerina Siniakova (CZE) bt Coco Vandeweghe (USA) 4-6, 6-2, 6-2

Anastasija Sevastova (LAT) bt Marta Kostyuk (UKR) 1-6, 6-4, 6-3

Barbora Krejcikova (CZE x14) bt Andrea Petkovic (GER) 7-5, 6-4

Magda Linette (POL) bt Elina Svitolina (UKR x3) 6-3, 6-4

Paula Badosa (ESP x30) bt Yulia Putintseva (KAZ) 6-4, 6-1

Anastasia Pavlyuchenkova (RUS x16) bt Kristyna Pliskova (CZE) 6-3, 6-3

Karolina Muchova (CZE x19) bt Camila Giorgi (ITA) 6-3, 5-7, 6-3

Shelby Rogers (USA) bt Maria Sakkari (GRE x15) 7-5, 6-4