The Tennis Match-Fixing scandal has rocked the start of the Australian Open, with upto 16 of the top 50 players reportedly involved.

Nikolay Davydenko has won 21 ATP tournaments, including three Masters Series events. He was a member of Russia's Davis Cup-winning squad in 2006 and triumphed at the ATP World Tour Finals in 2009.

Djokovic has the opportunity to win the World Tour Finals, the Davis Cup and finish the year as world number one.

Ferrer played tough in both sets, but he was unable to pull off the win against a determined Novak Djokovic.

Ferrer, 31, who won his only Masters title last year in the French capital, dominated his fellow Spaniard 6-3, 7-5 to set up the championship decider against Djokovic who came back to win 4-6, 6-3, 6-2 against the 2011 Paris champion.

The six-time Grand Slam winner, who last suffered defeat in the US Open final against Rafael Nadal, overcame an inspired Federer before finally taking victory 4-6, 6-3, 6-2 in just over two hours.

The fifth seed Indo-French pair suffered a 6-7 (5) 6-3 4-10 against Croat-Brazil combo in one hour and 17 minutes.

Djokovic swept into the semi-finals with a rapid-fire 6-1, 6-4 win over Stanislas Wawrinka, while Federer came through a second set wobble to edge Juan Martin del Potro 6-3, 4-6, 6-3.

Novak Djokovic will next play the winner of the match between Roger Federer and Juan Martin del Potro for a place in Sunday's final.

World No. 1 Rafael Nadal defeated last year's runner-up Jerzy Janowicz 7-5, 6-4.