In pictures: Pliskova's stunning comeback over Serena
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As she has done so many times before, though, Williams came roaring back, breaking Pliskova back to love and capturing the second set 6-4 (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.