MELBOURNE (AFP) – Aryna Sabalenka battled through "unbelievable" windy conditions Tuesday to reach the Melbourne semi-finals and keep her dream of an Australian Open hat-trick alive. The world number one faces Spain's Paula Badosa for a place in the final after grinding past Russia's Anastasia Pavlyuchenkova 6-2, 2-6, 6-3 on Rod Laver Arena.