Birmingham, UK, 21 June 2017 | AAP/

Australian No.1 Daria Gavrilova has edged into the quarterfinals of the Wimbledon warm-up event in Birmingham with a 7-5 2-6 6-4 win over Czech Katerina Siniakova.

The world No.21 battled with her serve in hot conditions in England’s second city, being broken six times, but showed great character to see off her 40th-ranked rival in just under two-and-a-half hours.

Gavrilova recovered from 4-2 down in the opening set and despite letting slip a 2-0 lead in the third set, re-focused to break serve again in the fifth game – an advantage she maintained for the rest of the match.

She next faces either former top-tenner Lucie Safarova or Japanese young gun Naomi Osaka in the last eight.

Fellow Australian Ashleigh Barty will face eighth-seeded Czech Barbra Strycova later on Wednesday.