K is for Karolina Pliskova.
One of the highlights of last year's tournament was the "crazy" tiebreak between Pliskova and Wozniacki in the opening set of their semi-final. Leading 6-1, Wozniacki was in command, but couldn't convert any of her five set-points. Then Pliskova had three set-points of her own, but couldn't finish off the tiebreak either. Wozniacki eventually took the breaker 11-9, and went on to win the match in straight sets. "That was a little bit crazy. It was kind of a rollercoaster," said Wozniacki. (Getty)