Ukrainian tennis player Elina Svitolina, the world No.4, has confidently overcome her compatriot, Marta Kostyuk, in the third round of the Australian Open 2018.
Svitolina defeated 15-year-old Kostyuk 6-2, 6-2 in one hour.
In the fourth round of the tournament, Svitolina will face world No. 130 Denisa Allertova from the Czech Republic.