Daria Kasatkina wants to "pay back" Australia with results after admitting she held back tears and dealt with severe nerves during an agonising three-set loss in her home debut.
The former world No.8, who switched allegiance from Russia to Australia in March, showed grit and baseline power but was let down by her serve in a 7-5 4-6 6-4 loss to Anastasia Potapova in Sunday's Brisbane International opener.
