Serena Williams got knocked out of the semifinals of the Australian Open on Wednesday as Karolina Pliskova managed to save four match points for her remarkable win.    In the deciding set, Williams looked to have overpowered her opponent as she was at 5-1 lead. However, surprisingly, Karolina Pliskova managed to win six straight games … Continue reading Australian Open; Serena Williams stunned by Karolina Pliskova