Jack Sock Leads Men's Australian Open Wild Card Challenge Whitney Osuigwe Ties Varvara Lepchenko atop Women's Standings   WHITE PLAINS, N.Y., November 5, 2018 – Jack Sock's quarterfinal appearance at the ATP Masters 1000 event in Paris last week put him in good position to receive entry into the main draw of the Australian Open, as he leads the Australian Open … [Read more...] about Australian Open Wild Card Challenge Update