(November 24, 2011) While David Ferrer has already secured his spot in the semifinal round at the Barclays ATP World Tour Finals, his match with Tomas Berdych will help decide which player makes it to the final four. While Berdych will be attempting to make the elimination round for the first time, Novak Djokovic will be taking on compatriot Janko Tipsarevic trying to secure the spot for himself.

Thanks to the tiebreak system for the year-end event, the qualification scenario for the quarterfinals is a bit complicated, with both players holding some of the power in their hands. Despite his marred record against Ferrer, Berdych actually possesses the better situation compared to Djokovic.

With the Serbian battle on court first, Berdych will know exactly where he stands when he heads to the court to battle the tenacious Spaniard. If Djokovic is able to defeat Tipsarevic in straight sets, then Berdych would have to match and win in straight sets in order to qualify.

However, if Djokovic needs three sets to advance, then Berdych can progress simply by winning the later match. Likely the best scenario for Berdych would be if Djokovic loses again, and he is able to down Ferrer in two sets, then Berdych would actually win Group A and avoid playing Roger Federer in the semifinal round.

When Tipsarevic was still an alternate in the competition he practiced with his fellow Serb, but will have to overturn a winless record in three matches with Djokovic. While their matches have been close for the first two sets, Tipsarevic has so far been unable to overcome the hump of taking home a win.

While both players are capable of playing aggressively from both sides, Djokovic has shown a bit more patience that has been the deciding factor in their previous matches.

While the first match will showcase two players with similar abilities, the second will feature two players that will show a classic battle of aggression against consistency. The hard-hitting 6 foot 5 inch Berdych will be trying to use his powerful ground strokes to overcome the stalwart Ferrer.

The Spaniard holds a 5-2 advantage over their careers, but the two have only met twice on hard courts. Ferrer holds the distinction of winning both hard court battles with their last one being decided by only one point in 2010.