The Belgian had powered 16 winners to Svitolina's eight and significantly won nine of 12 points at the net. Svitolina was immediately in trouble at 0-40 at the start of the second. She saved those but a weak forehand into the net gave a fourth and Mertens landed an overhead smack on the sideline to secure the break. Another break followed, and a third courtesy of a sumptuous backhand pass took Mertens to the brink of the last four at 5-0.
UPSET ALERT: Elise Mertens defeats Elina Svitolina, the No. 4 seed at the #AusOpen, 6-4, 6-0. The unseeded Belgian is into the semifinals and will face Caroline Wozniacki or Carla Suarez Navarro. pic.twitter.com/f8OFkE4H06January 23, 2018
She completed the humbling of Svitolina with little fuss and will face either second seed Caroline Wozniacki or unseeded Carla Suarez Navarro for a place in Saturday's final. If she makes it she will emulate Clijsters, who won at Melbourne Park in 2011. Mertens had a message for her countrywoman and tennis great who she said would be following the match in the middle of the night back home. "Kim, thanks for watching and don't get too stressed."
.@elise_mertens is making her first Australian Open main draw appearance an unforgettable one!— US Open Tennis (@usopen) January 23, 2018
She stuns No. 4 seed Svitolina 6-4, 6-0 to reach her first Grand Slam SF! https://t.co/EMtVlyw9T1
?: #USOpen pic.twitter.com/TSuIcbbmpw
.@elise_mertens vs Elina Svitolina ?— #AusOpen (@AustralianOpen) January 23, 2018
-2 double faults
-16 unforced errors
-5/9 bp won
-1/2 bp saved
-15/20 net points
-67% 1st serve won
-65% 2nd serve won
-av. 1st serve 182 km/h#AusOpen pic.twitter.com/xi49rD2y8G