Slovakia advanced to the Billie Jean King Cup semi-finals for the first time since 2002 after defeating Australia with an unbeatable 2-0 lead on Sunday. Viktoria Hruncakova and Rebecca Sramkova secured singles victories to clinch the win.Hruncakova outlasted Kimberly Birrell in a gruelling match, winning 7-5, 6-7(4), 6-3 after two hours and 30 minutes. Although …