2013 China Open will officially kick off on Sunday and all eyes will be on superstars Rafael Nadal, Novak Djokovic, Serena Williams, and Victoria Azarenka as they attempt to add another trophy to their collection along with important ATP and WTA world ranking points.

Nadal vs. Djokovic and the battle for world's no.1

The battle for the top spot in the ATP ranking continues as Nadal looks to reclaim his status as the best men's singles player in the world at China Open. With a whisker of margin only separating, Nadal only needs to advance to the final round or see Djokovic failing to make the semifinal round.

However, the Joker won't make things easier for Nadal as he attempts to solve his losing streak against the Spanish Bull. Coming off a loss at the US Open final, Djokovic is expected to come up with a different game plan to neutralize Nadal's impeccable ground game.

Aside from Nadal vs. Djokovic final scenario, the China Open will also feature a group of top-caliber netters that could spoil the potential showdown of the top-2 tennis players in the world.

French Open runner-up David Ferrer, Tomas Berdych, Richard Gasquet, Stanislas Wawrinka, Tommy Haas and John Isner will surely spice things up in this tourney.

Another Vika-Serena Championship Showdown?

Williams successfully clinched the year-end no.1 ranking for the third time in her career after winning two of the four available Grand Slams along with several tournament wins this year.

The multiple Grand Slam winner has been super dominant throughout the season, but there's only one woman so far that could match his intensity on the court - and that's Azarenka.

With the wound of US Open defeat at the hands of Serena still fresh on her mind, Azarenka is expected to bring out her A-game as she looks to foil the American this time around.

Of course, there are others very willing to crash the party such as Agniezka Radwanska, Lucie Safarova, Sabine Lisicki, Maria Kirilenko and home-crowd favorite Li Na.

CHINA OPEN TRACKERS FOR CONTENDERS

Rafael Nadal - World no. 2 ATP Rankings

Vs. Qualifier 1 - (Live Stream / Match Statistics)

Vs. 2nd Round opponent

Novak Djokovic - World no.1 ATP Rankings

Vs. Lukas Rosol - (Live Stream/ Match Statistics)

Vs. Second Round Opponent

Serena Williams - World's no. 1 WTA Rankings

Vs. Elina Vesnina - (Live Stream/ Match Statistics )

Vs. 2nd Round

Victoria Azarenka - World's no.2 WTA Rankings

Vs. Andrea Petkovic - (Live Stream/ Match Statistics)

Vs. 2nd Round

Schedule & Live Stream

China Open will start from September 30 to October 6. Men's Singles Bracket and Women's Singles Bracket are already released while Live Streaming of other matches will be available here:

Women's Singles - (Day 1/ Day 2/ Day 3/ Day 4/ Day 5/ Day 6/ Day 7).

Men's Singles - (Day 1/ Day 2 / Day 3/ Day 4/ Day 5/ Day 6/ Day 7)

Schedule of Matches is available on China Open website. Running scores and results are available on this Tracker.

IBT Sports will also provide links to daily recaps of 2013 China Open (Daily Recaps).