Hungary's Anna Bondar defeated No.6 seed Mirra Andreeva 7-6(3), 6-3 to advance to the quarterfinals of the Ladies Open Lausanne.
Ranked No.155, Bondar rallied from a break down in both sets to defeat the 16-year-old, who was bidding to make her first quarterfinal on the Hologic WTA Tour. Bondar will face either Sara Sorribes Tormo or Tamara Zidansek in the quarterfinals.
Andreeva took an early lead on Bondar to lead 4-1 in the first set and looked to be firmly in control after saving a trio of break points to lead 5-2. But serving for the set at 5-3, Andreeva played a loose, error-filled game to get broken and Bondar sealed the set in the tiebreak.
Andreeva broke immediately to open the second set but Bondar reeled her in once again. Trailing 3-1, Bondar broke Andreeva to level the set at 3-3 and then broke the teenager for a third and final time to lead 5-3. The Hungarian closed out the win at love after 1 hour and 41 minutes.
While Bondar was able to secure a straight-set win, it was a day of three-set victories in Lausanne. No.7 seed Alizé Cornet advanced to the quarterfinals with a 3-6. 6-1, 6-3 victory over Switzerland's Viktorija Golubic. Cornet will face another Swiss favorite in Jil Teichmann.
After her run to the Roland Garros Round of 16 as a lucky loser, Elina Avanesyan's summer surge continues. Ranked No.68 at the start of the week, the 20-year-old advanced to her third WTA quarterfinal in the last two months after defeating Chloe Paquet 2-6, 7-5, 6-1. Seeded No.8 in Lausanne, Avanesyan will take on No.2 seed Elisabetta Cocciaretto.