LONDON, Nov. 7 (UPI) -- Juan Martin del Potro returns to the men's tennis Top 10 this week for the first time since a wrist injury dropped him to as low as No. 484 in the rankings.
Del Potro won the 2009 U.S. Open and worked his way to as high as No. 4 in the world by January 2010. But the injury caused him to miss more than nine months of the schedule and recovery from surgery kept him from defending the Open title in 2010.
The lack of play dropped him deep in the rankings. He had a slow return to form over the first half of 2011 but has been much sharper since then and after a semifinal appearance at the Valencia Open in Spain, he is No. 10 in the world, knocking Janko Tipsarevic to 11th.
It is the first time del Potro reached the Top 10 since Aug. 16, 2010.
The rest of the Top 10 is unchanged as the ATP season heads into its final weeks. Nine of the 10 highest-ranked players -- all but No. 2 Rafael Nadal -- are in the field for this week's Paris Masters. Five of the eight automatic invitations for the ATP World Tour Finals have been decided with Tomas Berdych, Jo-Wilfried Tsonga and Mardy Fish having the inside track for the other three.
Novak Djokovic, who was handed his fourth loss of the year last week, is No. 1 with 13,475 points followed by Nadal (9,500), with Andy Murray (7,200) in third, Roger Federer (5,685) ranked fourth and David Ferrer (4,300) in fifth.
Berdych, who has 2,840 points, is No. 6, just ahead of Tsonga (2,935) with Fish (2,875) also close. Nicolas Almagro (2,370) is No. 9 and Del Potro has 2,315 points, 10 more than Tipsarevic.