Ana Ivanovic

BEIJING— Where did this Martin Klizan come from? The answer is, from the Qualifiers. This is a player who was just a few days earlier down a set and 1-5 to a player ranked 800 in the world, and here he is playing one of the best games I have seen this year, creating a sensation taking world No.2 Rafael Nadal out of this 2014 China Open.