NOTTINGHAM, Great Britain – Zheng Saisai had never beaten Johanna Konta in their two previous encounters, but turned around a losing head-to-head to stun the No.2 seed and hometown favorite, 6-4, 7-5, to advance into the quarterfinals of the Aegon Open Nottingham.

Konta last played Zheng in the second round of this year’s Australian Open, where she became the first British woman to reach a Grand Slam semifinal since 1983. Now ranked inside the Top 20 for the first time in decades, the Brit eased out to an early 2-0 lead, only to see her Chinese opposition walk away with six of the next eight games, breaking serve twice to take the opening set in 45 minutes.

The second set was an even more hotly contested affair, one in which Konta again lead by a break at 4-2, getting within six points of a decider. Zheng broke back, however, and served out a titanic final game that forced her to face three break points to earn her spot in the last eight in just over two hours.

Up next for Zheng is either Andrea Hlavackova or Ashleigh Barty, the young Aussie playing in her first WTA tournament since 2014.

More to come…