In pictures: Pliskova's stunning comeback over Serena
3 / 14
Pliskova continued to pressure the Williams serve, breaking again in the second set to lead 6-4, 3-2 (Getty)
Karolina Pliskova saved four match points to mount an astonishing comeback against Serena Williams to make her first Australian Open semifinal. Check out all the best pictures from a thrilling contest.