Sports Petra Kvitova downs upstart American Danielle Collins in Australian Open semifinals January 24, 2019January 24, 2019Sandra Harwitt, Special to USA TODAYComments Off on Petra Kvitova downs upstart American Danielle Collins in Australian Open semifinals Danielle Collins, a two-time NCAA champion with Virginia, was aiming to become the first collegiate player to reach a major final since 1983.