South Korean tennis star Chung Hyeon is once again up against world number one Roger Federer in the quarterfinals of the Indian Wells Masters in California.
The match started about an hour ago and is on set 2 as we speak,... with Federer finishing his service game with an ace leading 6-5.
The match comes just under two months since Chung Hyeon had to retire from his Australian Open semifinal against Federer.
And depending on the outcome of the match, the Swiss legend might have to step down from his title of 'world number one.'
