Defending Australian Open champion Angelique Kerber was upset by American CoCo Vandeweghe in the fourth round at the Australian Open on Sunday.
World No. 35 Vandweghe prevailed 6-2, 6-3 in one hour and eight minutes, sending home World No. 1 Kerber and advancing to her first quarterfinal in Melbourne.
"I think it's my first win over a world No. 1 I guess. I'll take it," Vandeweghe said on court after the match. "I faked it a lot, because I was feeling a bit crap out there. You have to fake it until you make it. I just had to pick my spots and trust my game.