New York (AFP) - Australia's Ajla Tomljanovic followed up her victory over Serena Williams with another battling performance to beat Liudmila Samsonova and reach the quarter-finals of the US Open on Sunday.
Tomljanovic -- who knocked out tennis icon Williams in the third round on Friday -- advanced to the last eight with a 7-6 (10/8), 6-1 victory over Samsonova.
The 29-year-old world number 46 will play either Tunisia's Ons Jabeur or Russia's Veronika Kudermetova in the quarters.
"The fact that I won, I'm still a little speechless," Tomljanovic said after her win.
Tomljanovic was set on the path to victory after a dramatic opening set which lasted 1hr 22mins.She saved seven set points in an epic near 20-minute 10th game to hold serve at 4-5 down.
She then saved another in the tie-break before clinching the set.
"I don't know that it's 20 minutes ...If I knew it was that long I would probably panic a little bit," Tomljanovic said of the marathon 10th game.
"I think it was just about staying in the moment.I just try to stay as calm as possible because inside I'm dying."
After the marathon the first set, the second set was one more-sided with Tomljanovic wasting no time in wrapping up the victory.
