Wozniaki, Nadal remain on top of world tennis rankings

BERLIN - Denmark's Australian Open champion Caroline Wozniaki

remains top of a largely unchanged women's tennis rankings released

by the WTA Monday.

Wozniaki has a leading 7,965 points with Romania's Simona Halep,

runner-up in the Melbourne classic last month, narrowly behind on

7,616.

Wozniack, who claimed her first Grand Slam in Melbourne, previously held the number one rankings spot for 67 weeks between October 2010 and January 2012.

There is no change to the order or points in the top 10 after a week

of Fed Cup action with the only alterations in ranking coming outside

the leading 50.

In the men's rankings, Rafael Nadal has stayed at the top but Roger Federer could make a move on the number one spot this week.

Nadal leads on 9,760 points with Federer a close second on 9,605. However, the Swiss is playing this week at the Rotterdam tournament and with Nadal not in action, a run to the semi-finals would return him to the top of the pile.

The 20-time grand slam winner Federer would become the oldest man to top the rankings should he take the number one placing.

Lower down the top 10, German Alexander Zverev moved up a place to fourth ahead of Bulgaria's Grigor Dimitrov.