Source: Australian Open Mirjana Lucic-Baroni is back in the semifinals of a Grand Slam after a nearly 18-year wait, beating fifth-seeded Karolina Pliskova 6-4, 3-6, 6-4 to advance to the last four at the Australian Open. The 79th-ranked Croatian collapsed to her knees after serving it out and broke into tears in a post-match interview on Rod Laver Arena.